They initially struggle to properly express their feelings for each other until the episode 'The Shell', where he finally works up the nerve to express his feelings to her after she reveals her true form, and they begin dating. Gumball has a crush on his classmate Penny Fitzgerald, who in turn shares the same feelings for him.

In 'The Name', it was discovered that his real name was 'Zach', however, this caused him to develop a split personality, though he was seemingly cured at the end of the episode, by changing his name to Gumball. Often finding himself and Darwin in various antics which end up getting them into trouble, episodes in the series' first season characterized Gumball as well-meaning in his actions, but with naive tendencies throughout the show's progression, he has since established himself as a more serious character capable of logical thinking and prone to sarcasm. He attends Elmore Junior High in the seventh grade (later in the eighth grade ) with his adoptive brother Darwin, who is 10 years old. He is a 12-year-old mischievous blue cat who lives with his family in the fictional Californian city of Elmore. Gumball Tristopher Watterson, born Zach Watterson, (voiced by Logan Grove in seasons 1–3, Jacob Hopkins in seasons 3–5, Nicolas Cantu in season 5–6, and Duke Cutler in The Gumball Chronicles onward) is the protagonist of the series. Student at Elmore Junior High (seventh grade eighth-grader as revealed in 'The Grades' )ĭarwin Watterson (adoptive brother and best friend)

^ Main cast from 'The Copycats' to 'The Anybody'.

^ Main cast since episode 1 of 'The Gumball Chronicles'.

^ Main cast from 'The Copycats' to episode 6 of 'Darwin's Yearbook'.

^ a b Main cast from 'The Kids' to 'The Copycats'.

^ a b Main cast from 'The DVD' to 'The Kids'.

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

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