| Betty MacArthur
| Character Information
She appears to be a puffy-looking piece of a chalkboard, with numerous chalk scribbles covering her body, some wrinkles around her forehead, and small, thin limbs. She has purple eyes, and yellow lips. She also carries a purple and yellow purse around with her.
- "The End": She appears in the long line of customers in the grocery store.
- "The Laziest": She is with the rest of the senior citizens and advises that Gumball and Darwin get Larry to compete in a lazy-off with their father.
- "The Kiss": She appears with the other senior citizens when Gumball and Darwin walk by them.
- "The Poltergeist": She is in the cinema in the flashback.
- "The Wand": She appears twice in the cinema.
- "The Colossus": She appears with the other senior citizens during Hector's rampage.
- "The Job": She is seen sitting with other senior citizens while Marvin levitates.
- "The Watch": She is seen with Marvin and the other senior citizens.
- "The Tag": She drives her car.
- "The Finale": She and the other seniors chase after Gumball, Darwin, and Richard.
- "The Extras": She is with the rest of the senior citizens, tap dancing and getting up as part of a dance.
- "The Mothers": Banana Barbara lets her go first in the elevator at Elmore Mall.
- "The Lie": She is seen singing Sluzzle Tag carols with other citizens at the mall.
- "The Butterfly": She gets knocked down by citizens.
- "The Safety": She gets hit by a garbage can, then thrown by Darwin after asking if he and Gumball were okay.
- "The Countdown": She appears on the bus being driven by the Manly Warrior.
- "The Crew": She is with the rest of the senior citizens; this is her first major role.
- "The Parking": The Wattersons give her a ride to the bus.
- "The Wicked": She is seen at Joyful Burger in Elmore Mall.
- "The Origins: Part Two": She walks on the sidewalk.
- "The Slide": She tells Gumball, Darwin and Rocky where she last saw Rocky's dream girl.
- "The Loophole": Bobert steals her purse at the mall.
- "The Console": She gets knocked out by Gumball, Darwin, and Anais in the park.
- "The Catfish": She appears in pictures from Louie's past.
- "The Deal": Nicole aggressively raps at her on the sidewalk.
- "The Nuisance": She is seen in a picture at Marvin’s house.
- "The Father": She appears in her car on the highway.
- "The Anybody": She is shown in the cinema, watching Stellar Odyssey.
- "The Intelligence": She is in the library.
- "The Potion": She is on the bus.
- "The Silence": She appears in a billboard advertising bloomers.
- "The Possession": She has her fan taken.
- "The Revolt": She is attacked by the objects.
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