- Adam Long
- Mr. Small
- Alex Jordan
- Hot Dog Guy
- Nicolas Cantu
- Gumball Watterson
- Sandra Dickinson
- Granny Jojo / Banana Barbara / Felicity Parham / Alison Sandra Gator / Mrs. Jotunheim (voice)
- Garrick Hagon
- Mayor of Elmore
- Kerry Shale
- Larry / Bobert / Leslie / Hector (voice)
- Teresa Gallagher
- Nicole Watterson / Penny / Margaret Robinson (voice)
- Simon Lipkin
- Rocky
- Steve Furst
- Nigel Brown
- Dan Russell
- Richard Watterson / Patrick / Chicken Bucket / Marvin Finklehimer (voice)
- Kyla Rae Kowalewski
- Anais Watterson
- Christian J. Simon
- Darwin Watterson
- Max Cazier
- Clayton / Ocho (voice)
- Stefan Ashton Frank
- Mr. Robinson / Tina Rex (voice)
- Mic Graves
- Banana Joe / William (voice)
- Jessica McDonald
- Sarah / Masami / Carrie / Daisy the Donkey (voice)
- Hugo Harold-Harrison
- Tobias / Idaho / Julius Oppenheimmer Jr. / Alan / Miss Simian (voice)
- Adam Long
- Mr. Small
- Duke Cutler
- Gumball Watterson
- Richard Overall
- Billy Paraham
- Charles Philipp
- Rob
- Maxwell Cazier
- Clayton / Ocho (voice)
