Darwin Watterson - Suffocated due to losing his lungs and becoming a regular fish, ultimately by Rob. Banana Joe - Decapitated by Jamie's dodgeball.

Who died in Gumball?

Episode 20

Banana Joe - Overeats. Gumball and Darwin Watterson - Dies in The Forest of Doom.

Who is Darwin's crush?

Sarah has a huge crush on Darwin (and Gumball) and cannot help but stalk him. But unlike Gumball, Darwin is much more patient with Sarah, such as in "The Fan," when Gumball and Darwin hurt her feelings and sent her away, Darwin immediately regretted his actions and wanted to make it up to her.