Anthony Michael Hall as Casey Gallagher

Jerry Orbach as Stan Walton

Claudia Christian as Samantha

Eli Danker as Zadar

Robert Z'Dar as Reggie

Mark Harelik as Detective Kaminsky

Rob Paulsen as Gnorm (voice)

Mike Avery as Gnorm

Craig Caton as Gnorm

Greg Figiel as Gnorm

Eric Karlen as Gnorm

Eileen Kastner-Delago as Gnorm

Richard J. Landon as Gnorm

Frank Charles Lutkus III as Gnorm

Shane Mahan as Gnorm

Brandon Mason as Gnorm

Jon Price as Gnorm

John Rosengrant as Gnorm

Will Ryan as Gnorm

Shannon Shea as Gnorm

Mike Trcic as Gnorm

Joseph R. Sicari as Ferril

Greg Kean as Budd

Rueben Grundy as Cop #1

Guy Garner as Cop #2

Elizabeth Bliss as Teen Mother

Michael Faustino as Little Boy

Tisha Putman as Valley Girl

Deanna Oliver as Cashier

Michelle Johnston as Stripper