Butterknife

The Butterknife is a minor character in The Amazing World of Gumball. He made his first appearance in "The Finale."

Season 2

 * "The Finale": He is seen with the Prisoners in a jail cell with the Wattersons.

Season 3

 * "The Name": He appears in Gumball's subconscious.
 * "The Extras": He is seen humming a song with the Prisoners.
 * "The Spoiler": He appears in the cinema.
 * "The Money": He is seen working for a repossession company.

Season 4

 * "The Signature": He is seen moving Frankie's belongings out of his house, due to him not paying his rent.
 * "The Check": He is seen working at Darwin's business. He also has his first speaking role.
 * "The Parking": He is seen at Chanax Inc. while watching the Wattersons out the window.
 * "The Fury": He gets arrested by Doughnut Sherrif thanks to Nicole.

Season 5

 * "The Choices"