Dee Wallace
Karen White

Patrick Macnee
Dr. George Waggner

Dennis Dugan
Chris

Christopher Stone
R. William 'Bill' Neill

Belinda Balaski
Terry Fisher

Kevin McCarthy
Fred Francis

John Carradine
Erle Kenton

Slim Pickens
Sam Newfield

Elisabeth Brooks
Marsha Quist

Robert Picardo
Eddie Quist

Margie Impert
Donna

Noble Willingham
Charlie Barton

James Murtaugh
Jerry Warren

Jim McKrell
Lew Landers

Meshach Taylor
Shantz

Robert A. Burns
Porn Store Patron

Kenneth Tobey
Older Cop

Dick Miller
Walter Paisley - Bookstore Owner

Bill Sorrells
Kline

Sarina C. Grant
Hooker

Wendell Wright
Man at Bar

Roger Corman
Man in Phone Booth (uncredited)

John Sayles
Morgue Attendant (uncredited)

Jonathan Kaplan
Gas Station Attendant (uncredited)

Forrest J. Ackerman
Bookstore Customer (uncredited)

Robert A. Burns
Porn Store Patron (uncredited)

Michael Chapman
Man at End of Bar (uncredited)

Mick Garris
Man with TV Guide (uncredited)