Top 50 Famous Regular Show Characters

Mordecai is one of the two central characters in the animated series "Regular Show." He first became friends with Rigby in kindergarten, forging a strong bond that has lasted into adulthood. Together, they work as groundskeepers at the city park, where Mordecai develops feelings for a waitress named Margaret.

Mordecai's love life becomes complicated after he unintentionally cheats on Margaret with CJ, a girl he also dates for a time. This tangled romance leads to tension and heartbreak, ultimately causing a breakup between Mordecai and CJ.

While Mordecai may seem laid-back, he often displays responsibility and intelligence, especially when tackling challenges sparked by his and Rigby's antics. He is patient, gentle, and big-hearted but, like Rigby, prefers relaxing with a nice, cold soda to doing hard work.

Pops, originally named Mega Kranus, is the supreme being of his species from Lolliland. He has a villainous brother, Malum Kranus, with whom he battles at the end of each universal cycle. Their clash ends in a tie, causing the universe to reset itself repeatedly.

After arriving on Earth, Pops was discovered by Mr. Maellard, who adopted him and tried to give him a normal life. Though Pops holds the title of park manager alongside Benson, he often behaves more like a friendly groundskeeper.

Pops is beloved for his childlike wonder and innocence. He is cheerful, trusting, and always respectful, communicating with an elaborate and uniquely detailed language. He delights in simple pleasures like butterflies and cherishes his quirky car.

Despite his gentle demeanor, Pops can display surprising firmness and demand respect if he feels undervalued or disrespected.

Rigby is Mordecai's closest friend and the younger sibling of Don. During his high school years, Rigby frequently got into trouble and struggled academically, much to the disappointment of his parents. Along with Mordecai, he was bullied by Jablonski and ultimately chose not to attend prom.

Although he hoped to attend College University, Rigby was actually rejected. To cover this up, he forged a rejection letter and later faced expulsion after a failed time machine project. Despite his immaturity, impulsiveness, and occasional lack of respect, Rigby truly values his friends and tries to do the right thing in critical moments.

He is terrified of horror movies and is known for his over-the-top reactions, including his signature "Shark Face" and the catchphrase, "STOP TALKING!!!" After high school, Rigby joined Mordecai as a groundskeeper at the Park, where their friendship and misadventures continued.

Skips is an immortal yeti known for his wisdom and calm demeanor, serving as a groundskeeper at Mr. Maellard's park in the series. Originally named Walks, he was born sometime in the 18th or 19th century.

During his youth, Skips was reckless and adventurous, frequently getting into fights and enjoying a wild lifestyle. Meeting the love of his life transformed his outlook, inspiring him to value peaceful solutions instead of confrontation.

After her passing, Skips matured, adopting a more serious and reflective personality. His incredible knowledge—gained from centuries of life—makes him the go-to person for solving supernatural predicaments in the show.

Despite rarely speaking, Skips contributes significantly to the group, often found working or exercising in the golf cart garage. He may seem stoic, but he does have a sense of humor and enjoys joking with his friends. The character is voiced by Mark Hamill.

Eileen is a shy and timid mole girl, often described as quirky and nerdy, with an endearing crush on Rigby, as noted by Minty Lewis. Over time, Eileen grows as a character, showcasing her ingenuity in "Camping Can Be Cool," where she impresses Rigby by confidently starting a fire without matches and sharing her knowledge of constellations.

Highly intelligent, Eileen excels in her college courses, consistently earning straight As. Despite her academic prowess, she has a lighthearted side, demonstrated by her love for sea turtles and her enthusiasm for hobbies like rock polishing. Eileen harbors a fear of snow tubing, stemming from a childhood mishap.

In her youth, Eileen was part of the "mole scouts" but chose to leave to avoid being labeled a "British dirtbag." Ambitious and idealistic, she penned a sixth-grade manifesto, "The Eileen Plan," outlining dream goals such as becoming President and eradicating peanut allergies.

During high school, Eileen was on the pep squad, though she opted not to attend prom, further emphasizing her unique and relatable personality.

Hi Five Ghost is a small, ghostly character with a white, semi-transparent body, resembling a Pac-Man figure. He has a distinct feature—a small arm and hand extending from the top of his head. While he often stays quiet and keeps to the background, he is known for his supportive, kind-hearted, and logical nature.

Deeply loyal to his best friend, Muscle Man, Hi Five Ghost frequently joins him in games of basketball. He also gets along with Mordecai and Rigby, though occasional conflicts arise because of Muscle Man's strong influence on their group dynamic.

Among the park workers, Hi Five Ghost is regarded as the most logical, a point highlighted by the resident scientist in the episode "The Button." Despite being a ghost, he displays sensitivity about death, a trait revealed in episodes like "Trucker Hall of Fame" and "The End of Muscle Man."

Mitch "Muscle Man" Sorrenstein is a green-skinned, burly, and overweight humanoid who serves as a groundskeeper at the Park alongside Mordecai, Rigby, and Hi Five Ghost. While he often appears lazy and unkempt, Benson recognizes Muscle Man as a hardworking employee, frequently outpacing Mordecai and Rigby in tasks.

Muscle Man is famous for his "My Mom!" jokes and enjoys pranking his coworkers, yet he clearly cares for his mother, as revealed in the episode "My Mom." His large ego is evident—especially in "Exit 9B"—where he goes out of his way to make his signature the biggest.

Starla is Muscle Man's love interest, and he strongly dislikes being called "Mitch" unless she says it. Formerly a competitive bodybuilder, he earned his nickname by winning numerous events at the Power Tower.

Benson grew up in a verbally abusive household, which played a significant role in shaping his short temper and frequent outbursts. After leaving home, he became a Stick Hockey Master and served as the drummer for the popular band Hair to the Throne. Despite his talent, he received no credit and was ultimately kicked out of the band.

Eventually, Benson became the manager of the Park, where he hired Mordecai and Rigby. He often loses his cool due to their frequent slacking and poor productivity. Beyond his temper, Benson is known for his determination, athleticism, and ability to stay focused on his goals.

Benson is also capable in a fight, revealing a tougher side when needed. Despite these intense moments, he is generally sociable and fair, sometimes rewarding his staff with time off when he’s in a good mood. Notably, he once participated in a game show, but after mispronouncing a word, he was eliminated and ended up losing all his hair.

Margaret Smith is introduced as Mordecai's love interest, but their relationship ends when she leaves for college. Determined and focused, Margaret aspires to attend Milton University and ultimately achieves her goal. After earning a journalism degree, she pursues an adventurous career as a newswoman, traveling to various places around the world.

Margaret is portrayed as kind, caring, and grounded. She is passionate about her work and highly dedicated to her studies. Throughout the series, Margaret becomes part of a love triangle with Mordecai and CJ, but eventually, she and Mordecai decide to end their romantic involvement and remain friends.

As a recurring character, Margaret plays a pivotal role in the show, especially in shaping Mordecai's personal growth throughout the series.

Mr. Maellard is known for his strict, greedy, and eccentric personality. He frequently yells at Benson, his employee, often holding him responsible for problems in the park—even when Mordecai and Rigby are the real culprits.

Mr. Maellard demonstrates little regard for his staff, regularly using insulting names for Benson and only seldom showing appreciation, usually at the end of an episode. Nevertheless, he reveals a more compassionate side toward Pops, his adopted son, offering care and guidance to help him grow.

His eccentricity is apparent in episodes like "Maellard's Package," where he overreacts to receiving a simple sandwich. Despite his flaws, Mr. Maellard deeply loves his family, evident in his heartfelt mourning for Pops—shedding tears after the Dome's three-year absence and attending his son's funeral.

CJ, also known as Cloudy Jay, is a recurring character in Regular Show. Voiced by Linda Cardellini, she is Mordecai's girlfriend until a complicated love triangle with his ex, Margaret, leads to their breakup.

Laid-back and cool, CJ shares Mordecai's passion for video games, rock music, and goofing off. She stands out for her wit and independence, often teasing others in a playful and good-natured way.

While talented at mini-golf, CJ once resented the game due to her father's competitive streak. This changed after she finally defeated him in the episode "Daddy Issues." As a cloud-based character, CJ can transform into a storm cloud with rain, lightning, and damaging winds when pushed too far.

CJ can become aggressive when angry or upset, sometimes reacting without knowing the full story. She is depicted with white skin, cloud-like hair, and typically wears a red-orange and white-striped tank top, brown shorts, and black boots.

The Baby Ducks are a group of four adorable yellow ducklings discovered by Mordecai and Rigby near the park fountain in the episode "A Bunch of Baby Ducks." After imprinting on the duo, the ducklings quickly became attached, prompting Mordecai and Rigby to care for them.

Benson initially instructed Mordecai and Rigby to clean up the fountain and remove the ducks, but the pair tried taking them to a pet shelter—only to be turned away. Later, the Baby Ducks proved invaluable by helping defeat Giant Susan alongside Mordecai and Rigby.

In subsequent episodes, the Baby Ducks show off their unique powers by defeating geese, even transforming into a giant duck-shaped creature to protect their friends. Visually, they are identical: yellow feathers, orange beaks and feet, and large black pupils.

Thomas, originally named Nikolai, was abandoned as a child in Kyiv and later adopted by Russia, who raised and trained him as a loyal operative. Eventually, he was sent to infiltrate the United States, where he assumed the identity of Thomas and began an internship at the Park.

Despite frequently being the target of pranks and enduring mistreatment, Thomas remained committed to his internship and eventually earned a position as an official Park employee. All the while, his true identity as Nikolai, a Russian spy meant to steal the Park for Russia, remained a secret.

Things changed when Thomas discovered Russia's plan to destroy the Park and kill everyone in it. Choosing loyalty to his colleagues over his mission, he turned against Russia and saved the Park. As a result, Thomas was forced into hiding, taking on the life of an undercover agent who occasionally visits the Park in disguise.

Usually laid-back and able to handle criticism well, Thomas is known for sometimes asking awkward questions at the wrong time. Deep down, he is sincerely loyal to the Park and regards the crew as his closest friends.

Death is a memorable fictional character in Regular Show, embodying the classic Grim Reaper who guides souls to the afterlife. He is often depicted as cruel, ruthless, and sadistic, finding enjoyment in his daunting role and witnessing the pain of others.

Despite his intimidating nature, Death also demonstrates admirable traits such as honoring agreements and deeply loving his wife and son. He is portrayed as an undead, skeleton-like being with a gaunt frame, greenish-white flesh, and hollow eye sockets.

His distinctive look includes British biker attire, sunglasses, a biker helmet, and a knapsack. Death first appears in the episode "Over The Top," where he takes Rigby's soul but later negotiates a deal for his return to life.

Though frightening in form and demeanor, Death's role is an essential fixture across cultures, often seen as a neutral entity simply fulfilling his cosmic duties.

The God of Basketball is an extraordinary character who resides on the moon and commands remarkable basketball-related powers. He is portrayed as a friendly and approachable figure who forms a bond with the series' protagonists, Mordecai and Rigby, even offering to teach them the game.

When Mordecai and Rigby struggle to grasp basketball, the God of Basketball uses his supernatural abilities to instantly grant them exceptional skills. He later reappears in another episode, lending his powers to Skips in a crucial effort to save The Park.

Standing impressively tall, the God of Basketball is instantly recognizable by his head, which is a basketball featuring expressive human traits like a mouth, eyes, and nose. He sports a jersey numbered "1," vibrant orange basketball shorts, and long white socks, making his unique appearance as memorable as his legendary basketball prowess.

Techmo is a memorable supporting character in Regular Show, known for aiding the main cast during their battles with computer glitches and tech-related adversaries. He stands out with his green skin, bionic eye, robotic arm, white hair, and a distinctive, torn-sleeved black jacket.

Techmo is instantly recognizable by his samurai sword, tube socks, and penny loafers. Having fought in the American War with a wooden arm, he resurfaces as a skilled Technomancer who assists Mordecai, Rigby, and Skips in defeating Error 220 in the episode "Skips vs. Technology." He also helps take down villains in "Exit 9B" and "Regular Show: The Movie."

In the episode "A Skips in Time," Techmo enables the crew to catch a timenado and rescue present-day Skips. He makes his last appearance in the series finale, warmly greeting Skips upon his return from space.

Garrett Bobby Ferguson Sr., often called G. B. F. or Giant Bearded Face, is a notorious antagonist in Regular Show. He serves as the primary nemesis of Mordecai and Rigby, first appearing in Season 2's episode "High Score."

In his debut, he cheats to maintain his status as the universe's reigning record-holder in the arcade game "Broken Bonez," only to be outsmarted and defeated by Mordecai and Rigby. Later, he resurfaces in "Exit 9B" when his son revives him alongside other villains, though he is disappointed by his son's actions.

Garrett makes a cameo in "Can You Ear Me Now?" where he appears as a bitter witness, testifying against Mordecai and Rigby for blowing him up on two separate occasions.

He is especially memorable for his enormous beard and his dramatic, explosive defeat in "High Score."

Don is Rigby's younger brother, who arrives at the park to resolve a tax audit triggered when Pops attempts to pay the park's taxes with lollipops. Mordecai recommends bringing in Don, an accountant, to help fix the situation.

Rigby is upset by Don's arrival, as he has always felt overshadowed by his younger sibling. This stems from past events, like Don stealing the spotlight at Rigby's sixth birthday party. Don quickly becomes the center of attention thanks to his friendly, cool, and funny personality—everything Rigby is not.

As a result, Rigby's resentment towards Don intensifies, pushing Don to leave the park. When the audit goes wrong and the park starts to disappear, Rigby and Mordecai realize they need Don's help, prompting them to reconcile with him.

With Don's expertise, he successfully completes the audit, restoring the park to normal. Before departing, Don jokes that "an accountant's work is never done," leaving a memorable impression.

The Halloween Wizard is portrayed as a menacing and deeply disturbed character in the series. Antisocial and unhinged, he isolates himself in a haunted mansion with only his cat for company, deliberately avoiding any social interaction with others.

Vengeful by nature, he takes pleasure in harshly punishing anyone who crosses him. His cruelty is evident in the gruesome fates he imposes on the main characters, showcasing his sadistic tendencies. At times, he's also shown to be petty and eccentric; for example, he turned Rigby into a house and eliminated his friends simply as an act of revenge.

In summary, the Halloween Wizard epitomizes a terrifying and perverse villain who takes joy in causing pain and chaos. Although a minor antagonist overall, his most significant appearance is in the episode "Terror Tales of the Park."

The Guardians of Eternal Youth are a group of five chubby babies with surprisingly deep voices who possess the power to grant eternal youth. Skips holds them in high regard and earned his own agelessness by defeating Klorgbane with their help.

Production-wise, the Guardians first appeared in the episode "Free Cake," although their chronological debut is in "Skips' Story." They dispatched Mordecai, Rigby, and Skips to Synthos on a quest to help restore Gary's physical form.

The Guardians played a crucial role in defeating Anti-Pops during "An Epic Regular Final Battle." Their signature look features gold hats, brown bibs, and white diapers, and they are recognized for their mature, booming voices. Notably, Reginald wore black clothing adorned with Magical Elements in "Skips Strikes." During high school, the Guardians dressed in brown suits, black ties, and classic white poet shirts.

Stef is an anthropomorphic batwoman who is Mordecai's wife and the mother of their three children. She made her debut in the series finale episode "A Regular Epic Final Battle". Stef is an artist and her relationship with Mordecai was likely influenced by their shared talent and love for art.

In the "25 years later" comic, it is shown that she is friendly and sociable as she is seen chatting with Eileen during the park reunion. However, Stef is visibly jealous and annoyed when she meets Margaret, who retains her youth and is unaware of her, indicating that she does not like having secrets kept from her.

Not much is known about Stef's history as she does not have any speaking lines in the series finale.

Sensai is the owner of the Death Kwon Do Pizza and Subs restaurant and a former Death Kwon Do Instructor. Sensai is an overweight martial arts instructor who uses a notebook full of drawings as his technique book.

He often reacts to bad news by shouting "NOOOOO!" and only appears with a few lines. In one episode, he is revealed to have an apprentice named Jerry-San. He has orange or strawberry-blonde hair and a moustache, wears a white headband and cut-off jeans, curly chest hair and thick arm hair.

His name is spelt incorrectly as "Sensai" in the credits. Additionally, he is seen numerous times with an incorrect number of fingers.

Starla Gutsmandottir-Sorrenstein, also known as Muscle Woman and is a recurring character. She works at Icy & Hot Jewelry Apparel and is married to Muscle Man. She was first introduced as Muscle Man's ex-girlfriend and later developed a crush on Mordecai.

After briefly dating him, she became angry and destroyed everything in her path but was calmed down by Muscle Man, and they rekindled their relationship. Starla is a green humanoid with shoulder-length brown hair, half down and half tied into two pigtails, and is about Muscle Man's build.

Her personality is tough-as-nails, and she is willing to fight for her boyfriend but can also be an antagonist. However, she is often seen helping somebody out and is on good terms with Mordecai despite their past.

Muscle Dad Sorenstein is the deceased father of Muscle Man. He pretended to be a trucker, but in reality, he was a forklift operator. He loved to prank people, even his son and died after being mauled for putting a cactus under a cop in a bear costume who turned out to be a real bear.

He returned as a ghost to make amends with his son and left behind letters for him. Muscle Dad had a white undershirt, blue jeans, a brown belt with a gold buckle, black overalls with silver connectors, brown cowboy-like boots, and a trucker net hat that said "World's Greatest Trucker".

When he became a ghost, the words on his hat changed to "World's Greatest Forklift Driver".

Low Five Ghost is a character who looks identical to High Five Ghost but has facial hair, teal sunglasses, and two hands out more than his counterpart. In his debut episode "See You There", he is seen wearing sunglasses, which are not typically part of his appearance, indicating that he may have been bailed out of jail.

It was later revealed in "Gut Model" that Low Five Ghost graduated from a police academy, despite his criminal past. His apartment was shown for the first time in "Struck by Lightning."

Anti-Pops, also known as Malum Kranus, is the antagonist of the animated series. He is the illegitimate brother of Pops and wants to destroy the universe while Pops wants to save it.

Anti-Pops hires a nightmare alien to track down Pops, who is hiding in the Space Tree and builds an army to attack him. Despite losing Pops, Anti-Pops puts a bounty on his head, leading to a final battle between the two brothers.

Anti-Pops is a malevolent, destructive, and genocidal entity that is extremely picky about food and drinks. In the end, both brothers die together, and Anti-Pops accepts his fate after showing some remorse for his past actions.

Klorgbane the Destroyer is related to the Guardians of Eternal Youth and serves as the main antagonist in Season Three. Every 157 years, he fights Skips to try and reign over The Guardians of Eternal Youth's Realm as part of the council.

Klorgbane wears black clothes, a black helmet or hat, a black and red cape, a black diaper, black socks, and two silver/black bracelets. In his early life, he was a student at Bennett's Academy and bullied Skips, leading to a fight that resulted in the death of Skips' girlfriend, Mona.

Skips used the Fists of Justice to launch Klorgbane into space in retaliation.

Huge Head is a secondary antagonist in the episodes ``Really Real Wrestling" and "Men in Uniform", and the main antagonist in "Men in Uniform ''. Huge Head plans to steal Pops's identity as revenge after he unintentionally stole his place in a wrestling match.

In "Men in Uniform'', it is revealed that he has been stalking and plotting revenge against Pops for the last 4 years. He attacks Pops but gets stuck between dimensions due to his large head, which eventually becomes a beneficial attraction for the park.

In the episode "The Key to the Universe'', he is seen as a skeleton floating in midair. Huge Head is similar in appearance to Pops but with a younger face, stubbly hair, and, of course, a huge head.

Chance Sureshot is a recurring character in the show who works with the park workers at the Space Tree Station. He is sometimes dramatic and kind. He first appears in Cool Bro Bots, helping the park crew fight against The Reaperbots, and later appears in Welcome to Space.

In Space Escape, he sacrifices himself to save the park crew from being vaporised but later returns in A Regular Epic Final Battle, revealing that he cloned himself in order to survive and fight alongside the park crew and their allies.

After Pops and Anti-Pops died, Sureshot and several characters that Anti-Pops erased were eventually revived.

Recap Robot is a character who works at the Space Tree Station with Chance Sureshot and Toothpick Sally. He made his debut in Season Eight and is a robot with a green face, a space tree logo on his chest, and triangular tread tracks.

Recap Robot is shown as a good character and has a radar dish on the back of his head. In the Halloween episode, he is seen with a fear counter.

Toothpick Sally is a character who works at the Space Tree Station alongside Chance Sureshot and Recap Robot. She has light skin and white hair, wears a green Space Tree uniform, and is muscular.

Although she helps Mordecai and Rigby prepare for the Interstation 5000 race, she doesn't return to Earth with everyone else, and it's unclear why. Sally also assists in the final battle against Anti-Pops and Streaming.

The character is voiced by Vanessa Marshall, and she is a part of Rawls' personnel in the show.

Colonel Rawls is a recurring character. He is the commanding officer of the Space Tree Station and works alongside Chance Sureshot, Toothpick Sally, and Recap Robot. Rawls sacrifices himself during the Space Escape to buy time for the Park Crew to escape from Anti-Pops and his army, and the resulting explosion of the Space Tree Station presumably results in his death.

Rawls is a black male with short, curly hair and wears a uniform with torn sleeves that shows his muscles. He is a strict commander who sometimes uses hazing to motivate his cadets.

However, he is also brave and selfless, willing to risk his own life to save others.

Dr Reuben Langer is a character who initially wanted to take over Benson's position as the park manager for unknown reasons. However, he was actually an Earth operative of Space Tree Intergalactic Official's branch who was tasked with preparing the main characters to protect and awaken Pops' true potential as the Chosen One against Anti-Pops, Pops' dangerous brother.

Langer is seen mostly in a lab coat and jet-pack, sporting an eye patch on his left eye. He led the scientists' experiments through the park and spearheaded many rules, much to the annoyance of the park workers.

After testing the park employees for some time, they were launched into space because of Pops' true origin and Anti-Pops' quick movement.

Gary, also known as Gareth, is the messenger for the Guardians of Eternal Youth and the former king of his planet, Synthos. He left the planet to travel before returning to find his half-brother, David, had taken over and banned challenging music like discord music.

Gary challenged David in a music battle and defeated him. However, he declared that Synthos would have no ruler and that everyone should let the music guide them. Gary owns an El Camino, which can fly and travels through a wormhole to reach the floating oasis where the Guardians of Eternal Youth live.

He has appeared in various episodes, including "Free Cake," "Skips Strikes," and "Exit 9B." He is also a friend of Skips and helped save Thomas in "Exit 9B."

Hilary is a minor character and Mordecai's mother who first appeared in "The Thanksgiving Special." Not much is known about Mordecai's parents except that they have been married for 25 years, and Mordecai is their only son.

During Thanksgiving Dinner, they visited Mordecai at the Park, and later, CJ and Mordecai went to their house for dinner. Hilary has a habit of taping Mordecai's most embarrassing moments (which she calls Mordy Moments), which constantly embarrasses him.

In the series finale, she and her husband hugged Mordecai, and she kissed him on the cheek. Hilary appears to enjoy jogging and keeping fit, as she does "punchercize" class regularly. She is a female blue jay who resembles her son, Mordecai, with chin-length blonde hair and wears a wedding ring.

William is the father of Mordecai and a minor character in the animated series. He and his wife, Hilary, have been married for 25 years and have only one son. William appears to be a down-to-earth man, possibly working as an architect.

He has a similar appearance to his son, with dark brown hair, black square glasses, and a gold wedding ring. In "Maxin' and Relaxin'," Mordecai is afraid that his mother will embarrass him in front of his girlfriend CJ, so he asks his dad to get her out of the house, but he doesn't lie to his wife.

In the series finale, William and Hilary hug Mordecai, and Hilary kisses him on the cheek as the park blasts off into space.

Doug "The Doppelganger" Shablowski is the antagonist in the "Temp Check" episode of the animated TV show. He is a shapeshifting scam artist who presents himself as a drifter seeking work. Rigby hires him as a temporary employee at the park, unaware of his criminal status and intentions.

Doug's lively and overly enthusiastic demeanour initially fools everyone. However, he starts to mimic Rigby's voice and mannerisms, eventually copying his entire appearance. The park employees can't tell them apart, leading to a series of physical and trivia challenges.

They eventually discover the true Rigby based on a discrepancy in one of their responses. Doug tries to flee but is quickly apprehended and taken into custody by the police. His true intentions are revealed and he is last seen restrained in handcuffs.

Rigby's parents, Barbera and Sherm, are minor characters in the series. In the episode "The Thanksgiving Special", they seem proud of Rigby despite his laziness but in later appearances, they are more disappointed and frustrated with him, usually comparing him to his younger brother, Don.

Sherm is strict and mean towards Rigby, expressing how disappointed he is in him. Meanwhile, Barbara is shown to be more caring and sometimes defends him when Sherm yells at or criticises him.

In the episode "Rigby Goes to the Prom", Rigby needs a car to take Eileen to prom, and after being turned down by everyone, he finally asks Sherm for his car, but he gets rejected. Sherm is more concerned about his prized car than his son, causing a rift between them.

Pam Dunwoody is a scientist who studies the park workers and wears a lab coat and gloves like other scientists. She has long light brown hair and wears glasses, grey pants, a black belt, and tall black boots.

Pam and Benson, one of the park workers, started dating in "Pam I Am," but broke up in "Fries Night" due to Benson being in space. After Benson returns to Earth, they get back together and eventually marry.

Pam is kind to the park workers and has a positive personality. After being married to Benson for 25 years, she wears a blue dress with yellow flower patterns and doesn't wear her glasses anymore.

The Phone Guardians are male and voiced by Rich Fulcher and William Salyers. The Answering Machine is the leader of the group and has a black, normal answering machine appearance. It is unable to understand emotions and relationships but reveals a desire to start a band after hearing Mordecai sing.

The Tin Cans With String has white strings that move when it talks, and it cannot understand emotions. The Chalkboard is a green chalkboard with wheels that draws what it wants to say.

The Smoke Signal Fire is a Hopi Indian blanket with a fire inside, obsessed with burning people. The Message in a Bottle is a paper in a bottle with a cork.

The Geese are minor characters in the series. In the episode "A Bunch of Full Grown Geese," they are portrayed as antagonists, seeking to claim the park as their own personal territory through violent means.

They become a giant robotic-bodied entity with four goose heads in battle mode, similar to their younger counterparts. They are eventually defeated and killed by a giant hand chop from Duck Man, Mordecai and Rigby.

They later return as enforcers to the Boss of PlayCo in "Brilliant Century Duck Crisis Special," but eventually turn on him to help the park gangs and Baby Ducks, leading to a truce.

The Geese make a cameo as incriminating witnesses in "Can You Ear Me Now?" The Mega Geese is their transformation, which nearly defeated the Duck Man until Mordecai and Rigby powered up the Duck Man, leading to its defeat.

They have several upgraded versions, including Moto Goosowary X, Moto Goosowary X II, and Lunar Goosowary X - Omega Warrior.

Mr Ross is the main antagonist in Regular Show: The Movie, a volleyball coach and science teacher who has a grudge against Rigby for ruining his volleyball championship game and getting him sent to prison for illegal plutonium smuggling.

However, Rigby's motive was to get revenge against a bully who had been tormenting him. Mr Ross wears a neck collar, armour vest and pants, knee pads, boots, metal gloves, a jacket, and has crazy hair.

He is muscular with a chest tattoo saying "Time is on my Side." His obsession with revenge leads him to invent the time machine to travel back in time, but he is ultimately defeated by Mordecai and Rigby. He is happy in the end when the duo apologises to his past self.

Natalia is a minor character, appearing in the episode "The Real Thomas". She is a Russian spy who goes undercover as Benson's girlfriend, named "Natalie". Rigby becomes suspicious of Thomas and discovers that Natalia and Thomas are working together.

They were plotting to bypass the US-Russia Nuclear Arms Treaty by stealing a chunk of the park to start World War III. Thomas eventually realises the park is like a home to him and cannot go through with the plan, leading to a struggle with Natalia for the remote.

During the struggle, Natalia falls out of an open hatch and is eaten by a whale. She is introduced wearing a light blue cardigan and a ponytail but later changes into a brownish-green suit and high-heeled boots.

In the episode "The Christmas Special", Santa Claus is portrayed as having long hair tied back in a ponytail, wearing a black jacket, a red shirt, brown pants, a belt, a red scarf, and no Santa hat.

He is also not fat but has a six-pack and wears a bulletproof vest under his shirt. Santa is voiced by the late Ed Asner, who also played Santa in the 2003 movie Elf and the 2014 NBC musical special Elf: Buddy's Musical Christmas.

Despite being against the rules, Santa makes an exception and gives Mordecai and Rigby Invisibility Cloaks as a reward for saving Christmas.

Carl Putter is CJ's father and a world-famous professional golfer who only appears in the Season 6 episode "Daddy Issues". He used to take CJ out to play mini-golf when she was young but would pressure her to take the game more seriously and sometimes not let her win.

During a junior championship, he scolded CJ for playing it safe, causing her to quit playing mini-golf. Years later, Carl learned that CJ had won a challenge and was going to compete in the Putter Palooza.

He joined the competition to beat her but ended up in a sudden-death putt-off, where he had a change of heart and helped defend CJ against demons. Afterwards, he apologised for the verbal abuse and golf beatings, saying it was the only way he knew to prepare her for the world.

John is Margaret's cousin and an orange bird, possibly an oriole, in the TV series. Mordecai mistakenly thought that Margaret accepted a proposal from John, which sent him into depression. John later reveals that Margaret screamed, "Yes dude, yes!" because he had gotten a new leg.

He reappears in the episode Family BBQ, where he is shown playing football with Mordecai and Frank Smith. John is depicted as a buff bird and wears a white and greyish-plaid shirt, black pants, and brown shoes.

He also has a wooden leg, which accidentally flies away when he kicks the football, but Mordecai catches both the football and the wooden leg.

Audrey is a character voiced by Courtenay Taylor. She is Benson's former neighbour and ex-girlfriend who first appears in the episode "Weekend at Benson's" in season three. After Mordecai and Rigby accidentally knock Benson out, they take him to his apartment, where they find out about the party he planned with Audrey.

At the party, Benson takes a challenge to drink a foul beverage to impress Audrey, but also makes Mordecai and Rigby drink it as revenge. They all hallucinate and wake up in the park the next day.

Benson forgives them and tells them to get back to work. Audrey leaves her number for Benson, indicating her continued interest in him.

Archie the Archivist appears in multiple episodes. In "The Last Laserdisc Player," he helps Mordecai, Rigby, Muscle Man, and High Five Ghost retrieve a laserdisc player, and he transforms into the Laserdisc Guardian to protect it.

In "Format Wars II," he learns that his long-lost son, DVD, is leading an attack against obsolete formats, including laser discs. With the help of his son and friends, Archie prepares to battle DVD and his minions but ultimately reconciles with his son, who was seeking revenge against him for unknown reasons.

Archie later dies at the hands of the Internet, a former ally of DVD. In the end, Archie appears as a ghost and watches a movie with his son and friends, unaware that the Internet is still plotting against them.

Celia is a minor character who appears in the episode “The Postcard” for the first time. She is a human teenager who is in high school. In fact, she moved away to Prague to pursue her studies.
 
What makes her character memorable is the fact that she is the girlfriend of Hi-Five Ghost. The both of them dated briefly and agreed to meet again in the future if she was still single. Both Celia and Hi-Five Ghost are similar in their likes and character traits.
 
She was described as a feminine human version of him. In the season finale, we see that Hi-Five Ghost and Celia have married each other and have a child.
 

Quintin “Quips” Quippenger is Yeti and Skips’ cousin. He debuts late in the series during the fourth season and appears only for a short while. Quips is known to be the annoying cousin who bugs everybody with his bad jokes.
 
Quips is a nice guy, despite his bad jokes and socially insensitive behaviour. He is actually too innocent to understand his faux pas, which makes it more annoying. Everybody at the park wants him gone, except for his cousin, Skips, who likes him.
 
Quips appears to have no friends and depends on Skips for socialising. Yet he is happily engaged to his loving fiance, whom he later marries.