When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.
Paul Grogan
Maggie McKeown
Dr. Robert Hoak
Jack
Buck Gardner
Dr. Mengers
Betsy
Laura Dickinson
Colonel Waxman
Trooper
Mr. Dumont
Suzie Grogan
Whitney
Earl Lyon
Barbara Randolph
David
Jailer
TV Pitchman
Boy in Canoe
Father in Canoe
Soldier
Girl
Water-skier
Man in Boat
Screaming Woman
Dam Guard
Brandy
Swimming Deb (uncredited)
Dr. Robert Hoak (swimming double) (uncredited)
Scuba Diver #2 (uncredited)
Hertz Clerk (uncredited)
Scuba Diver #1 (uncredited)
Army Sentry (uncredited)
Scuba Diver (uncredited)
