Harvey Beaks

Max Charles

as Harvey Beaks (voice)

Angelina Wahler

as Fee (voice)

Thomas Robinson

as Foo (voice)

Scott Adsit

as Irving (voice)

Kerri Kenney

as Miriam (voice)

C.H. Greenblatt

as Dade / Jeremy (voice)

Matthew Zhang

as Kratz (voice)

Mason Vaughn

as Technobear (voice)

Addie Chandler

as Rooter (voice)

Nicole Wedel

as Claire (voice)

Andres Salaff

as Princess (voice)

Madeleine Curry

as Piri Piri (voice)

Nick Sumida

as Mikey / Kathy / Randl's Mom (voice)

Marc Maron

as Randl (voice)

Dave Foley

as Moff (voice)

Fred Stoller

as Bartleburt (voice)

Ana Gasteyer

as Tara (voice)

André Sogliuzzo

as Jean Luc (voice)

Jeff Bennett

as Doctor Roberts (voice)