Trailer
Cast
Bradford Dillman
Paul Grogan
Melody Thomas Scott
Laura Dickinson
Paul Bartel
Mr. Dumont
Guich Koock
TV Pitchman
Barry Brown
Trooper
Bruce Paul Barbour
Man in Boat
Richard Deacon
Earl Lyon
Kevin McCarthy
Dr. Robert Hoak
Keenan Wynn
Jack
Barbara Steele
Dr. Mengers
Phil Tippett
Scuba Diver (uncredited)
Heather Menzies
Maggie McKeown
Dick Miller
Buck Gardner
Eric Braeden
Dr. Robert Hoak (swimming double) (uncredited)
Belinda Balaski
Betsy
Joe Dante
Scuba Diver #2 (uncredited)
Amy Holden Jones
Hertz Clerk (uncredited)
Bruce Gordon
Colonel Waxman
John Sayles
Army Sentry (uncredited)