Michael Shulman as Mike Pilsbury

Erika Christensen as Katelyn

Adam Wylie as Nick

Andrew Ducote as Jay

Garrett M. Brown as Dana Pillsbury

Lee Garlington as Pamela Pillsbury

Brighton Hertford as Jill Pillsbury

Marcus Turner as Scott

Malcolm McDowell as Barnabus (voice)

Chris Davies as Ryan

Marie Stillin as Mrs. Nickerson

Jessica Murdoch as Katelyn’s Friend

Terry David Mulligan as Coach Trembly

Brian Steele as Thoad

Hrothgar Mathews as Thoad Man

J.D. Hall as Thoad (voice)

Peter Kelamis as Inter-Galactic Cop (voice)

Guy Fauchon as Hanzel

Bruce Lanoil as The Bom (voice)

Wally Wingert as The Loafer Alien (voice)

David Coburn as The Jarm (voice)

Tara Strong as Lula (voice)