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)