The Mushroom is a minor character in The Amazing World of Gumball. Like Hot Dog Guy, they usually appear in the background of the school cafeteria, usually sitting around other background characters. Their first appearance was in "The Third." They also appeared in "The Flower" behind Gumball before Carrie takes him to her house. They also appeared in "The Name" in the cafeteria once again. Then, they appear in "The Extras," which is their first speaking role in the show. They're seen singing angrily along with the other background characters towards Gumball and Darwin.
Mushroom has a tan cap with white spots, and a purple colored stem in Seasons 1 and 2. In Season 3, they have a pink cap with white spots, and a tan stem, with pink hands and legs. However, they reverted to their old design in "The Mirror", but got their new design back as of "The Butterfly".
