Shawn Mendes
Lyle (voice)
Winslow Fegley
Josh Primm
Javier Bardem
Hector P. Valenti
Constance Wu
Katie Primm
Scoot McNairy
Joseph Primm
Brett Gelman
Alistair Grumps
Ego Nwodim
Carol
Lyric Hurd
Trudy
Jason Kravits
Cy
Ben Palacios
Lyle's Motion Capture
Joshua Vasquez
8th Grade Boy
Marc Farley
Animal Store Owner
Sal Viscuso
Judge
Adam Murray
Lowlife
Mary Neely
Security Technician Mary
Don DiPetta
Paramedic
Lindsey Moser
Wrestling Coach
Matthew Risch
Walkie Talkie Police Officer
Clayton English
Young Security Guard
Mac Wells
Show Security Guard
Jef Holbrook
Audition Stage Manager
Matthew Wilkas
Night Construction Worker
Lauren Boyd
Live Show Stage Manager
Reif Howey
Sweep Dancer
Evangeline Miller
Sweep Dancer
Jene Moore
Sweep Dancer
Chance Mizell
Sweep Dancer
Christine Moon
Zookeeper
Angela Davis
HOA Member
Kathy Orlando
HOA Member
Caden Brillantes
Wrestling Student
Kyson Galligan
Wrestling Student
Alton Williams
Wrestling Student
Thomas Williams
Wrestling Student
Irving Thigpen
Wrestling Student
Matt Rogers
Show Host
Eric Rutherford
Esteemed Judge
Eboni Nichols
Show Judge
Taylor James
Judge
Donnie Cormier
Security Guard #3
Rick Pearson
Live Show Producer
Al Thompson
Animal Control Officer
Keiko Bell
Court Spectator (uncredited)