You don't eat gum, but you chew that. Simple, isn't it? Chewing gum.
Darwin, The Banana, The Amazing World of Gumball

Darwin Watterson
Current Age 10
Gender male
Species fish, alien
Location Elmore
Ability/ies swim
Fish guy
Voice Actor(s)
Kwesi Boakye

Darwin Watterson is Gumball's adopted brother, best friend, sidekick, etc.

First Appearance Gumball, 2007

Fusionfall: CN and Nintendo Collide

This is the first fanon game in which Darwin appears(along with Gumball).

Orange 'n' Green

In Super Mario Silver Spurs: The Crossover Vacation, Darwin goes with the rest of the Watterson family on vacation. He becomes a companion to Luigi in the same way that Gumball does to Mario. In fact, Darwin even becomes a friend to Bowser Jr.

Dog and Cat Goldfish

Darwin also appears in Gumball: Double Trouble as a major character. He has a slight rivalry with Mint Chewers in the game; however, his knowledge of underwater environments helps the group throughout their mission.

Gumball vs. Jimmy Neutron

Here he appears as a playable character, rival to Godard.