"After a new cannery introduces scientifically augmented salmon to a seaside town in the Pacific Northwest, a species of mysterious, mutated sea creatures begin killing the men and raping the women."
Doug McClure
as Jim Hill
Ann Turkel
as Dr. Susan Drake
Vic Morrow
as Hank Slattery
Cindy Weintraub
as Carol Hill
Anthony Pena
as Johnny Eagle
Denise Galik
as Linda Beale
Lynn Theel
as Peggy Larson
Meegan King
as Jerry Potter
Breck Costin
as Tommy Hill
Hoke Howell
as Deke Jensen
Don Maxwell
as Dickie Moore
David Strassman
as Billy
Greg Travis
as Mike Michaels, Radio Announcer
Linda Shayne
as Sandy, Miss Salmon
Lisa Glaser
as Becky
Bruce Monette
as Jake Potter
Amy Barrett
as Amy
Shawn Erler
as John, Hill Baby
Frank Arnold
as Old Man
Jo Williamson
as Self on Piano
Henry T. Williams
as Bass
Lyle Isom
as Banjo
Jonathan Lehan
as Fiddle
Rob Bottin
as Humanoid (uncredited)
Kent Adamson
as Humanoid Killer (uncredited)
Steve Johnson
Larry Wessel
William Martin
Screenplay
Creature Design
James Horner
Original Music Composer
Roger George
Special Effects
Rowdy Herrington
Electrician
Makeup Effects
Daniel Lacambre
Director of Photography
Mark Goldblatt
Editor
Martin B. Cohen
Producer
Chris Walas
Barbara Peeters
Director
Peter Manoogian
Second Unit
Gale Anne Hurd
Production Office Assistant
Diamond Farnsworth
Stunts
Jack Tyree
Stunt Coordinator
Roger Corman
Executive Producer
Jimmy T. Murakami
Co-Director