Sebastian Eugene Hansen
Henry
Jennifer Coolidge
Vice Principal Marlene
Rachel House
Malgosha (voice)
Allan Henry
Malgosha (Creature Performer)
Bram Scott-Breheny
Young Steve
Moana Williams
Young Garrett
Jemaine Clement
Daryl / Bruce (voice)
Yvette Parsons
Delivery Person
Bret McKenzie
Nitwit Onset Performer
Jared Hess
General Chungus (voice)
Batanai Mashingaidze
Matty the Waitress
Amanda Billing
Henry's Mother
Frankie Creagh-Leslie
Trevor's Friend
Alison Quigan
Chuggy Executive #1
John Smythe
Chuggy Executive #2
Joel Rindelaub
Arcade Judge
Ben Carpenter
Henry Picture Double
Alice May Connolly
Alex Double
Oliver Brotherhood
Auction Attendee
Daniel Middleton
Auction Attendee
Elizabeth Batty
Auction Attendee
Jessica Bravura
Auction Attendee
Kate McKinnon
Alex (voice) (uncredited)
