Aisha Tyler

Millie (voice)

Christopher Swindle

Fungus (voice)

Bob Peterson

Roz (voice)

Stephen Stanton

Smitty / Needleman / Sanderson (voice)

Bonnie Hunt

Ms. Flint (voice)

Nathan Fillion

Johnny (voice)

Jenifer Lewis

Grandma Tuskmon (voice)

John Ratzenberger

Bernard (voice)

Alan Kim

Ben (voice)

Aubrey Plaza

Claire (voice)

Julia Butters

Lorelei (voice)

Sander Argabrite

J.J. (voice)

Rhys Darby

Roger Rogers (voice)

Bobby Moynihan

Chet (voice)

Richard Ayoade

Declan (voice)

Janelle James

Joy (voice)

Dee Bradley Baker

Chompy (voice)

Jimmy Tatro

Skyler (voice)

Romi Dames

Hazel (voice)

Ethan Sandler

Stubby Lizzardo (voice)

Corey Burton

Slappy (voice)

Nohely Quiroz

FearCo. Receptionist (voice)

Billy Crystal

Mike (voice)

John Goodman

Sulley (voice)

Ben Feldman

Tylor (voice)

Mindy Kaling

Val (voice)

Henry Winkler

Fritz (voice)

Alanna Ubach

Cutter (voice)

Lucas Neff

Duncan (voice)