T.J. Miller

Gene (voice)

James Corden

Hi-5 (voice)

Anna Faris

Jailbreak (voice)

Maya Rudolph

Smiler (voice)

Steven Wright

Mel Meh (voice)

Jennifer Coolidge

Mary Meh (voice)

Jake T. Austin

Alex (voice)

Christina Aguilera

Akiko Glitter (voice)

Sofía Vergara

Flamenco Dancer (voice)

Patrick Stewart

Poop (voice)

Rob Riggle

Ice Cream (voice)

Sean Hayes

Steven (voice)

Tati Gabrielle

Addie (voice)

Jude Koyaute

Poop Jr. (voice)