60
About
When flesh-eating piranhas are accidentally released into a summer resort's rivers, the guests become their next meal.
Theatrical
Aug 3, 1978
Box Office
$16.0M
Budget
$660K
Return
24.2x
DVD / Blu-ray
Oct 26, 1999
Director
Writers
Producers
Roger Corman, Jon Davison, Chako Van Leeuwen
Music
Studio
New World Pictures, Chako Film Company
Where to Watch
Region
Apple TV Store
Rent from
HD
$3.99
Apple TV Store
Buy from
HD
$9.99
Amazon Prime Video
Stream included
HD
Included
Amazon Video
Rent from
HD
$3.99
Amazon Video
Buy from
HD
$9.99
See all 37 options →
Prices last updated September 28, 2026. Pricing and availability may vary by region.
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Cast
Full credits →B
Bradford Dillman
Paul Grogan
H
Heather Menzies
Maggie McKeown
K
Kevin McCarthy
Dr. Robert Hoak
K
Keenan Wynn
Jack
D
Dick Miller
Buck Gardner
B
Barbara Steele
Dr. Mengers
B
Belinda Balaski
Betsy
M
Melody Thomas Scott
Laura Dickinson
B
Bruce Gordon
Colonel Waxman
B
Barry Brown
Trooper
P
Paul Bartel
Mr. Dumont
S
Shawn Nelson
Whitney
R
Richard Deacon
Earl Lyon
J
Janie Squire
Barbara Randolph
B
Bill Smillie
Jailer
G
Guich Koock
TV Pitchman
E
Eric Henshaw
Father in Canoe
D
Diamond Farnsworth
Water-skier
B
Bruce Paul Barbour
Man in Boat
M
Mike Sullivan
Dam Guard
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Quotes
See all →Piranha's Numbers Outmatch Sharks' Solitude
Taglines
Sharks come alone. Piranha come in thousands.
Quotes sourced from Wikiquote (© Wikiquote contributors), licensed under CC BY-SA 4.0. Modified for formatting/length.
Piranhas: A Threat to Humanity
Taglines
They're Here...Hungry for flesh! Who Can Stop Them?
Quotes sourced from Wikiquote (© Wikiquote contributors), licensed under CC BY-SA 4.0. Modified for formatting/length.
