Michael Shulman

Mike Pilsbury

Erika Christensen

Katelyn

Adam Wylie

Nick

Garrett M. Brown

Dana Pillsbury

Lee Garlington

Pamela Pillsbury

Brighton Hertford

Jill Pillsbury

Malcolm McDowell

Barnabus (voice)

Marie Stillin

Mrs. Nickerson

Terry David Mulligan

Coach Trembly

Brian Steele

Thoad

Hrothgar Mathews

Thoad Man

J.D. Hall

Thoad (voice)

Peter Kelamis

Inter-Galactic Cop (voice)

Guy Fauchon

Hanzel

Bruce Lanoil

The Bom (voice)

Wally Wingert

The Loafer Alien (voice)

David Coburn

The Jarm (voice)

Tara Strong

Lula (voice) (as Tara Charendoff)