Will Arnett

as Steve (voice)

Geraldine Viswanathan

as Winnie (voice)

Stephen A. Smith

as Marc Remy (voice)

Terry Crews

as Tentacular (voice)

Jimmy Tatro

as Lights Out McGinty (voice)

Joe Anoa'i

as Ramarilla (voice)

Rebecca Quin

as Axehammer (voice)

Tony Danza

as Siggy (voice)

Ben Schwartz

as Jimothy Brett-Chadley III (voice)

Michael Buffer

as Stoker Announcer (voice)

Carlos Gómez

as Jimbo Coyle (voice)

Bridget Everett

as Lady Mayhem (voice)

Charles Barkley

as Rayburn Senior (voice)

Chris Eubank

as King Gorge (voice)

Tony Shalhoub

as Fred (voice)

Susan Kelechi Watson

as Maggie (voice)

Fred Melamed

as Mayor (voice)

Brian Baumgartner

as Klonk (voice)

Greta Lee

as Councilwoman (voice)

John DiMaggio

as Betting Guy / Tattoo Guy (voice)

Brian Hopkins

as Underground Referee (voice)

Fred Tatasciore

as Referee (voice)

Jamal Duff

as Denise (voice)

Donald Priess

as Docks Announcer (voice)

Kaya McLean

as Young Winnie (voice)

Gracen Newton

as Young Rayburn (voice)

Christopher Knights

as King Gorge's Coach (voice)

Candi Milo

as Docks Referee / Jane / Director (voice)

Phil LaMarr

as Security Guard (voice)

Amber Stevens West

as Maricella (voice)

Carlos Alazraqui

as Nerdle (voice)

John Gluck

as Boy in Crowd (voice)

Owen Batty

as Confused Little Boy (voice)

Chris Anthony Lansdowne

as Farmer (voice)

Brian T. Delaney

as Burly Guy #1 (voice)

Alastair James

as Burly Guy #2 (voice)

Christophe Lautrette

as French Announcer (voice)

Toshiji Takeshima

as Japanese Announcer (voice)