| Character Information
Kenneth was created by mixing together various disgusting things (Gumball's used tissues, bird feces, and vomited spoilt milk) in a jar, which was then put through the microwave. After this, the gross mixture somehow gained a life of its own. Kenneth is a greyish-brown vaguely humanoid monster. He seems to have a very loose body form, and he looks constantly runny. Kenneth has a large mouth filled with razor sharp teeth, and when he grows to a larger size, his eyes start to glow white.
Kenneth seems to be a malicious and dangerous beast. The only thing he seems to enjoy doing is eating people, and once he manages to eat someone, he grows a little bit bigger. He first attacks Gumball and Darwin, but they mistake it for simple hunger, so they feed it. Eventually, he then eats the mailman and Anais but does not want to eat Gumball and Darwin, which shows that when it was made he was a bit sympathetic towards them. However, when he ate Richard he seems to have lost his sympathy towards the duo who claimed to be his mother and father, then proceeds to attack them.
- "The Microwave": Kenneth was created when numerous disgusting things Gumball had collected in a jar were irradiated in the microwave by an unwitting Richard. Gumball and a partially reluctant Darwin initially tried to raise Kenneth as their child, but Kenneth grew increasingly violent and dangerous; eating the mailman, Anais and Richard and growing larger and more monstrous, then going after Darwin and Gumball, eating Nicole and stalking the Wattersons' back garden. Gumball and Darwin eventually went out to fight and confront the now-monstrously large Kenneth and save his eaten victims, and Kenneth was defeated when a hose partially in his mouth was turned on, filling him up with water which caused Kenneth to explode from the water pressure; releasing everything he'd eaten and reducing him back to his original baby size and behaviour. Gumball talked the Wattersons out of killing Kenneth and thought they could raise Kenneth better this time; however, Gumball and Darwin began to regret this when Kenneth grew even bigger and more monstrous than before and went on a destructive rampage through Elmore.
- "The Finale": When the Wattersons decided to cause maximum devastation in Elmore to clear away their past debts, Richard and Anais released Kenneth - who had been reduced back to his baby size and frozen in the Wattersons' freezer after the events of "The Microwave" - who quickly grew to his monstrous size and went on a rampage again, and the Wattersons lured Kenneth into a giant-monster fight with Hector.
The gallery for Kenneth can be viewed here.
- The list of characters that he ate (in chronological order):
- Students on the school bus
- Kenneth and his motives seem to be inspired by the monster from the classic movie The Blob.
- He made a second appearance in the episode, "The Finale".