Robert Quarry

Count Yorga

Roger Perry

Dr. Jim Hayes

Michael Murphy

Paul

Michael Macready

Michael Thompson

Donna Anderson

Donna

Judy Lang

Erica Landers

Edward Walsh

Brudah

Julie Conners

Cleo

Marsha Jordan

Donna's Mother

George Macready

Narrator (voice)

Paul Hansen

Peter

Bob Kelljan

Director

Michael Macready

Producer

Bob Kelljan

Writer

Robert Vincent O'Neil

Production Supervisor

Pat O'Mara

Assistant Camera

Nancy Renard

Wardrobe Master

Patty Sue Townsend

Script Supervisor

George Garrin

Sound Assistant

Jim Getty

Key Grip

James Stinson

Props

James M. Tanenbaum

Special Effects

Bob Wilder

Set Designer

Lowell Brown

Sound Recordist

Bob Dietz

Sound Recordist

Master Dentalsmith

Makeup Artist

Mark Rogers

Makeup Artist

Arch Archambault

Director of Photography

Bill Marx

Original Music Composer

Tony de Zarraga

Editor