Stephen Stanton

Smitty / Needleman (voice)

Bobs Gannaway

Roto (voice)

Nathan Fillion

Johnny (voice)

Rhys Darby

Roger Rogers (voice)

Bobby Moynihan

Chet (voice)

Christopher Swindle

Bathroom Monsters / Four-Eyed Monster / McLean (voice)

Danny Pudi

Evan (voice)

Kurtwood Smith

Alistair Clawbottom (voice)

Danny Trejo

Terry (voice)

Cody Rigsby

Spin-Energy Instructor Monster (voice)

Corey Burton

C.R.E.E.P. WOrker / Sloppy (voice)

Ryan McPartlin

Bully Monster 1 / Mr. April (voice)

Emily Peterson

Fear Co. Narrator / Fancy Monsters (voice)

Stevie Wermers-Skelton

Scream Con Mascot / Bully Monster 2 (voice)

Carlos Alazraqui

Business Monster (voice)

Kevin Deters

Janitor (voice)

Max Mittelman

Scared Monster / Convention Monsters (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)