Max Charles
Harvey Beaks (voice)

Angelina Wahler
Fee (voice)

Thomas Robinson
Foo (voice)

Scott Adsit
Irving (voice)

Kerri Kenney
Miriam (voice)

Matthew Zhang
Kratz (voice)

Nicole Wedel
Claire (voice)

Madeleine Curry
Piri Piri (voice)

Marc Maron
Randl (voice)

Dave Foley
Moff (voice)

Fred Stoller
Bartleburt (voice)

Ana Gasteyer
Tara (voice)

André Sogliuzzo
Jean Luc (voice)

Jackson Brundage
Foo (voice)

Laz Meiman
Rooter (voice)

Jeff Bennett
Doctor Roberts (voice) / Geoffrey (voice)

Addie Chandler
Rooter (voice)

Ken Jenkins
Blister (voice)

Matt Berry
Doctor Roberts (voice)

Lesley Nicol
Lady Lake Spirit (voice) / Ms. Paddles (voice)