Dee Wallace as Karen White

Patrick Macnee as Dr. George Waggner

Dennis Dugan as Chris

Christopher Stone as R. William 'Bill' Neill

Belinda Balaski as Terry Fisher

Kevin McCarthy as Fred Francis

John Carradine as Erle Kenton

Slim Pickens as Sam Newfield

Elisabeth Brooks as Marsha Quist

Robert Picardo as Eddie Quist

Margie Impert as Donna

Noble Willingham as Charlie Barton

James Murtaugh as Jerry Warren

Jim McKrell as Lew Landers

Meshach Taylor as Shantz

Robert A. Burns as Porn Store Patron

Kenneth Tobey as Older Cop

Dick Miller as Walter Paisley - Bookstore Owner

Don McLeod as T.C. Quist

Bill Sorrells as Kline

Ivan Saric as Jack Molina

Steve Nevil as Young Cop

Sarina C. Grant as Hooker

Wendell Wright as Man at Bar

Herbie Braha as Porno Cashier

Joe Bratcher as Radio Man

Chico Martínez as Man on Street

Daniel Nunez as Liquor Cashier

Michael O'Dwyer as Drunk

Roger Corman as Man in Phone Booth (uncredited)

John Sayles as Morgue Attendant (uncredited)

Jonathan Kaplan as Gas Station Attendant (uncredited)

Forrest J. Ackerman as Bookstore Customer (uncredited)

Robert A. Burns as Porn Store Patron (uncredited)

Michael Chapman as Man at End of Bar (uncredited)

Mick Garris as Man with TV Guide (uncredited)