Donald is a minor character in The Amazing World of Gumball. He made his first appearance in "The Debt" at the Elmore senior talent show.
- "The Debt": He appears at the senior talent show performing with Marvin, Louie, and the Yellow Old Man.
- "The End": He is in the long line of shoppers.
- "The Laziest": He is with the rest of The Senior Citizens talking to Gumball and Darwin about Lazy Larry.
- "The Kiss": He is with the rest of the senior citizens in Darwin's happy place and then in Gumball's happy place.
- "The Poltergeist": He can be seen in the cinema in Gaylord's flashback.
- "The Colossus": He is blown away by Hector along with the rest of The Senior Citizens (except Louie).
- "The Job": He is seen on a news report watching Marvin float in the air along with Louie and Betty
- "The Watch": Darwin asks him if he can borrow his scooter, which he allows after he fails to get up from his chair to fight them.
- "The Boombox": He can be seen on Win or Don't Win winning a car.
- "The Finale": He demands that the Wattersons give back his scooter.
- "The Extras": He is seen dancing with the senior citizens. This is also his first major role.
- "The Lie": He is seen caroling about Sluzzle Tag along with Marvin, Betty, Felicity Parham, Jackie, and Harold.
- "The Butterfly": He gets knocked over by Betty, and then knocks over Marvin.
"The Crew": His second major role.
His name was confirmed in "The Crew."