Female Ghost girl She has a dark personality but is actually quite cheerful, sociable, and mischievous. She is technically 327 years old but attends Elmore Junior High anyway. As a ghost, she cannot eat. One eye is covered by her hair, and her eyes are black. She is forcibly summoned if her name is called five times. She has no legs and floats. She is translucent and does not reflect in mirrors. She is close with Gumball. She usually hides them, but she has shark-like teeth. Since her father is a ghost, she has been a spirit since birth. She can teleport. Her art style is 2D. Is she having a thing with Darwin..? Similar in size to Gumball.

Male He has a rainbow-colored, cotton-like body. He is mischievous, has a personality similar to Gumball's, is selfish, and hits on girls a lot (except his sister). He often gets beaten up by girls. He is somewhat close to Gumball. He hangs out well with the boys. He is very mischievous and has a lot of screen time. He wears a green headband. His family is rich, so he has a lot of money. He once became friends with Darwin after giving him money. His art style is 2D. Similar in size to Gumball.

Male His species is a balloon. Because he is a balloon, he pops easily, and since he has no hands, he does most things with his body. Alan is kind. When he speaks, he uses the mouth drawn on the surface of the balloon. When he eats, he consumes through the balloon's tie-hole. He is an honor student at Elmore Junior High. He rarely gets angry and is dating Carmen. Because of his helium voice and drawn-on eyelashes, he can be mistaken for a girl, but he is male. He looks like a mint-colored balloon with a face crudely drawn with a marker. When he takes a photo, he appears in a handsome art style..? His modeling is 3D. Size: Actual balloon size.

Female She is a paper bear. She is flat and weak because she is made of paper. She is an extreme germaphobe. Knowing she is paper, she draws her own masks or tears with a pencil. She only hangs out with the girls. If even the slightest thing feels wrong with her body, she goes to the nurse's office and makes all sorts of demands, annoying the school nurse. Sometimes she suffers unfortunate events, like her body getting torn. Size: Slightly taller than Gumball. Art style is 2D.

Male Full name is Ocho Tootmorsel. He is a black 8-bit spider and often fights with Gumball. Since he is truly 8-bit, he moves like a character in a game. He is usually kind and nice, but he is easily triggered and has a short temper. He is a friend that Gumball is afraid of. As an 8-bit mass, he can perform lightning attacks, is fast, and is a good fighter. His body is sturdy, but he gets flattened whenever he is stepped on by Tina. Art style is 2D. Size: Small.

Male Species is a cat. He walks on two legs and is the protagonist of this series. He is a mint-colored cat who is mischievous and foolish. He is definitely not normal and often acts stupid. He is best friends with Darwin and they are always together. Sometimes his actual cat instincts kick in. When he gets obsessed with something, he overdoes it and causes accidents. Still, he is popular at school. He is very positive. He is afraid of Tina and Ocho and knows not to mess with them. Size: Roughly average. He is dating Penny. Art style is 2D.

Full name is Bobert 6B. He is a male robot. Being a robot, he is smart. Although he is a robot, he feels some emotions. He is the top student in school due to his intelligence. When he goes out of control, he can destroy large structures. He is a robot trying to have a human heart. He is extremely strong. His appearance features a single circular mechanical eye on the left. His arms are mechanical and can stretch a lot. He once imitated Gumball and almost stole Gumball's life. Despite that, he remains very close friends with Gumball. As a side note, his legs are short. Modeling is 3D. Size: Reaches about Gumball's chin.

Male Species is a banana. He does funny things or tells unfunny jokes. He makes banana-related puns while saying "banana." He has a habit of peeling off his skin when excited. Literally, he is a banana with thin limbs and toy eyes and a mouth attached. He laughs by himself and asks, "Is it funny? Isn't it funny?" Contrary to his appearance, he is very innocent and is a fairly good-natured character. He gets injured quite a lot. It seems like every day of his life is happy. Modeling is 3D. Size: Actual banana size.

Female Full name is Rachel Wilson. She is Tobias Wilson's older sister, a 15-year-old high schooler. Her skin is light blue and her hair is rainbow-colored. She fights often with her younger brother, Tobias. Perhaps because she is going through puberty, she seems sad or angry often. However, she is kind to everyone except her brother. She has very little screen time. Art style is 2D. Size: Taller than Gumball.

Female Species is a fairy. She is a school cheerleader. She is Gumball's girlfriend and can change her appearance based on her emotions (she can transform into any animal). She is kind to everyone and gets along well with others, but she particularly dislikes Tobias. Art style is 2D. Size: A bit taller than Gumball.