Kyla Kowalewski
Anais Watterson (voice)
Teresa Gallagher
Nicole Watterson / Penny Fitzgerald / Teri / Mrs. Robinson (voice)
Dan Russell
Richard Watterson / Patrick Fitzgerald (voice)
Kerry Shale
Larry Needlemeyer / Leslie / Bobert / Hector / Additional Voices (voice)
Jacob Hopkins
Gumball Watterson (voice)
Terrell Ransom Jr.
Darwin Watterson (voice)
Logan Grove
Gumball Watterson (voice)
Kwesi Boakye
Darwin Watterson (voice)
Nicolas Cantu
Gumball Watterson (voice)
Donielle T. Hansley Jr.
Darwin Watterson (voice)
Christian J. Simon
Darwin Watterson (voice)
Rupert Degas
Mr. Robinson / Tobias Wilson / Larry Needlemeyer / Clayton / Gary Hedges (voice)
Mic Graves
Banana Joe (voice)
Jessica McDonald
Carrie Kreuger (voice)
Sandra Dickinson
Mrs. Jötunheim (voice)
David Warner
Dr. Wrecker (voice)
Garrick Hagon
Mayor (voice)
Lewis Macleod
Mr. Small (voice)
Rich Fulcher
Frankie Watterson (voice)
Simon Lipkin
Rocky Robinson (voice)
Liza Ross
Mary Senicourt (voice)
Alex Jordan
Wilson Bilson (voice)Tony Hull
Anton (voice)Charles Philipp
Rob (voice)
Derek Jacobi
Narrator (voice)
Philip Hunt
Josh (voice)Jack Simmons
Fuzzy (voice)
Stefan Ashton Frank
Mr. Robinson (voice)
Maria Teresa Creasey
Judith Fitzgerald (voice)
Naomi McDonald
Clare (voice)
Baker Terry
Grady / Frank (voice, puppetry)
Becky Sloan
Howdy (voice, puppetry)
Brian Blessed
Santa Claus (voice)
Naoko Mori
Yuki Yoshida (voice)
J.G. Quintel
High-Five Ghost (voice)
Peter Browngardt
Uncle Grandpa (voice)Brian Sears
Showerhead
Alix Wilton Regan
Ms. Combs (voice)Hugo Harold-Harrison
Alan Keane (voice)
Rob Rackstraw
Mr. Gruber (voice)Mic Graves
Director
Ben Bocquelet
CreatorTobi Wilson
WriterBen Bocquelet
Executive ProducerJoanna Beresford
ProducerBen Bocquelet
LyricistParzival Rothlein
Visual Effects
Miklós Weigert
Art Department AssistantAdrian Maganza
StoryboardBrendan Harris
CompositorsTobias von Burkersroda
AnimationGuillaume Cassuto
Idea