Richard Watterson

The ''Amazing World of Gumball'' characters appear in the British-American animated sitcom ''The Amazing World of Gumball''. The series revolves around the daily life of 12-year-old cat Gumball Watterson and his family—adoptive brother Darwin, sister Anais, and parents Nicole (née Senicourt) and Richard. Other Elmore Junior High students also have recurring roles. Creator Ben Bocquelet conceived ''The Amazing World of Gumball'' in 2007 while working for Cartoon Network Development Studio Europe, and based several of its characters on previous characters he had created for commercials.

Main characters

;Notes
Episodes are dictated by title as the series order is not consistent with the production order, original airing order, or order on streaming services like HBO Max.

Gumball Watterson

Gumball Tristopher Watterson, born Zach Tristopher Watterson, is the main and titular protagonist of the show. He is a 12-year-old mischievous blue cat who lives with his family. He attends middle school. In "The Club", it is revealed that his middle name was supposed to be Christopher, but was actually misspelled as Tristopher ("Trisha" for short) on his birth certificate. In "The Name", he learned that his legal name was Zach and began using it, but later had his legal name changed to Gumball.

Gumball was initially presented as well-meaning, but naive. Later, he was shown as more serious, capable of logical thinking, and sarcastic. Despite occasional lapses in judgment, Gumball is loyal, straightforward, and good-natured. He is protective of his loved ones but has a large ego, often causing him to overreact.

Darwin Watterson

Darwin Raglan Caspian Ahab Poseidon Nicodemus Watterson III is a 10-year-old orange goldfish who was adopted by the Watterson family. Initially given to Gumball as a pet, Darwin later sprouted legs and became a full family member. His arc begins with him as a naif, then shows him maturing. Darwin is loyal to Gumball and helps him out. He is sometimes shown exhibiting strange behavior, such as calling his adoptive parents Mr Dad and Mrs Mom.

Anais Watterson

Anais Errrrrr Watterson, a pink rabbit, is Gumball's precocious 4-year-old sister. She is one grade above her brothers and is often shown telling Gumball what to do. She often impatiently tags along with him as a voice of reason, but has also been shown manipulating her family to get what she wants. She sometimes exhibits childlike behavior and is shown as socially inept and incapable of forming friendships as she drives potential friends away with over-the-top clinginess.

Nicole Watterson

Doctor Nicole Watterson (née Senicourt) is a 38-year-old cat and the mother of Gumball, Darwin, and Anais. She is a bossy, over-stressed, hot-tempered workaholic, who can be sweet. Nicole is a master martial artist, knowing Karate and winning numerous tournaments when she was young. She shows affection for and is protective of her family. Nicole is occasionally vindictive, while also resourceful and inventive. In "The Parents", it is revealed that Doctor is her first name and Nicole is her middle name.

Richard Watterson

Richard Buckley Watterson is a 38-year-old anthropomorphic pink rabbit. He is the father of Gumball, Darwin and Anais. A stay-at-home dad, he spends most of his time sleeping, watching TV, and playing video games. Richard sometimes dresses as a woman, calling himself Samantha. He is "the laziest person in Elmore". He has a large appetite and is a voracious eater. Richard often serves as a third wheel to his sons' misadventures and cares deeply for his family despite his lethargy. He is naive and frequently gets called "dumb".

Richard is shown exhibiting childish behavior. He enjoys pulling pranks and laughing at people, but hates it when others prank or laugh at him.

Recurring characters

Elmore Junior High students

Penny Fitzgerald

Penny Fitzgerald (voiced by Teresa Gallagher) is a shape-shifting fairy (formerly a peanut with antlers) and classmate of Gumball who belatedly becomes his girlfriend. Like Gumball, she has trouble expressing her feelings. Underneath Penny's shell lies a yellow, fairy-like self that shape-shifts based on her emotional state. She is a member of the Elmore Junior High cheerleading and synchronized swimming teams.

Rob

Rob (voiced by Charles Philipp, season 2–"The Nemesis" and "The Disaster" onward; David Warner "The Nemesis"–"The Disaster") is a tall cyclops and Elmore Junior High student who becomes Gumball's arch-enemy.

Carrie Krueger

Carrie Krueger (voiced by Jessica McDonald) is a ghost who lives in a malevolent mansion and "enjoys being depressed". She can teleport and possess living bodies. She is the daughter of a man who formed a romantic relationship with a female ghost. She and Darwin become a couple. Carrie's last name is a reference to Freddy Krueger from the ''A Nightmare on Elm Street'' franchise.

Tobias Wilson

Tobias Wilson (voiced by Rupert Degas, season 1; Hugo Harrison, season 2 onward) is a multicolored, cloud-shaped humanoid who is interested in sports and possesses an overbearing self-confidence. He thinks of himself as a heavily built jock, despite actually being rather weak, and appears to be wealthy. He debuts in "The Third", where he demands twenty dollars to be Gumball and Darwin's friend.

Banana Joe

Joseph "Banana Joe" A. Banana (voiced by Mic Graves) is a hyperactive banana and the class clown, who cracks a joke whenever possible. He can be a bully, usually to Gumball and Darwin.

Masami Yoshida

Masami Yoshida (voiced by Jessica McDonald) is a cloud who is the wealthy daughter of the Rainbow Factory's owner. She is spoiled, tantrum-prone and vindictive. When angry, she can develop into a storm cloud capable of causing massive damage.

Bobert

Bobert (voiced by Kerry Shale) is a robot who is one of the smartest students, but constantly struggles to understand emotion and develop a social life. He can transform into a larger form by triggering his "defense mode".

Sarah G. Lato

Sarah G. Lato (voiced by Jessica McDonald) is a yellow ice cream cone and student. She is depicted as an obsessive fan of Gumball and Darwin.

Leslie

Leslie (voiced by Kerry Shale) is an effeminate, friendly daisy who plays flute in the school band and can often be found hanging around the girls. He is Penny's cousin.

Alan Keane

Alan Keane (voiced by Kerry Shale, season 1; Hugo Harrison, season 2 onward) is a teal-colored balloon who is Carmen's boyfriend. He is overly nice and even-tempered. Being filled with helium, Alan regularly speaks in a high-pitched voice. In "The Photo", Gumball envies him for having a beautiful face. Alan rebuffs this, but Gumball replies: "Dude, even your mole looks better than me". In "The Vision" it is revealed Alan secretly plans to take over the world and rule it as a dictator, brainwashing people to eradicate sadness. After discovering this, Gumball and Darwin attempt to assassinate Alan, which they succeed in after many failed attempts – though he reappears in subsequent episodes without any explanation. It was shown in "The Faith" that the world goes through chaos if Alan stops his kindness.

Carmen

Carmen (voiced by Teresa Gallagher, season 1; Alix Wilton Regan, season 2 onward) is a cactus who is considered to be a leader. She is Alan's girlfriend. Carmen is a cheerleader. She is best friends with Penny, Sarah, and Molly.

Teri

Teri (voiced by Teresa Gallagher) is a hypochondriac paper bear usually found in the nurse's office. Although somewhat self-absorbed and paranoid, she is very nice and is a cheerleader.

Hector Jötunheim

Hector Jötunheim (voiced by Kerry Shale) is a gentle Bigfoot-like giant. He is the largest student in Elmore Junior High, so that only his legs and feet are seen on-screen. He can be dangerous if he expresses too much emotion, such as anger, sadness or excitement. His surname is a reference to Jötunheimr, the homeland of giants in Norse mythology.

Tina Rex

Tina Rex (voiced by Dan Russell, season 1; Stefan Ashton Frank, season 2 onward) is a ''Tyrannosaurus'' who lives in the city junkyard, and a notorious bully. She often picks on her fellow schoolmates, especially Gumball, and has her own gang of bullies which includes Jamie and Anton. She is one of the strongest and most aggressive students. Her Cartoon Network biography suggests that she might have animosity toward others because she is "angry at the world for not noticing her femininity".

Idaho

Idaho (voiced by Kerry Shale, season 1; Hugo Harrison, season 2 onward) is a free-spirited potato from the countryside with conservative beliefs. He is one of the less popular students.

Anton

Anton (voiced by Tony Hull) is a piece of toast who is forcibly drafted into Tina's gang, hoping that by appeasing her he will avoid her anger. He is prone to getting killed in various freak accidents, only to be resurrected by his parents with a toaster that creates a new slice of him.

Juke

Juke (voiced by Hugo Harrison, music by Beatbox Hobbit) is a native of Boomboxemburg with a boombox for a head and he moves to Elmore. He speaks entirely in beatboxing