Wanneer twee wandelaars op mysterieuze wijze verdwijnen in de heuvels bij een meren-gebied, begint prive-detective Maggie McKeown (Heather Menzies) een onderzoek. Samen met de verbitterde streekbewoner Paul Grogan (Bradford Dillman), doet ze een huiveringwekkende ontdekking...
Nee, helaas is Piranha nog niet beschikbaar op Netflix in Nederland.
| Directing | Joe Dante | Director |
| Writing | John Sayles | Screenplay |
| Production | Roger Corman | Executive Producer |
| Production | Jon Davison | Producer |
| Sound | Pino Donaggio | Original Music Composer |
| Editing | Joe Dante | Editor |
| Editing | Mark Goldblatt | Editor |
| Costume & Make-Up | Rob Bottin | Special Effects Makeup Artist |
| Costume & Make-Up | Vincent Prentice | Special Effects Makeup Artist |
| Crew | Jon Berg | Special Effects |
| Visual Effects | Dave Morton | Mechanical & Creature Designer |
| Art | Robert Short | Special Props |
| Art | Chris Walas | Special Props |
| Visual Effects | Phil Tippett | Creature Design |
| Crew | Conrad E. Palmisano | Stunt Coordinator |
| Production | Chako Van Leeuwen | Co-Producer |
| Writing | John Sayles | Story |
| Production | Jeff Schechtman | Executive Producer |
| Production | 筑波久子 | Co-Producer |
| Camera | Jamie Anderson | Director of Photography |
| Art | Bill Mellin | Art Direction |
| Art | Kerry Mellin | Art Direction |
| Art | Jeff Ayers | Set Decoration |
| Writing | Richard Robinson | Story |
| Crew | Roger Creed | Stunts |
| Crew | Nick Palmisano | Stunts |
| Crew | Bobby Sargent | Stunts |
| Production | Tom Jacobson | Production Manager |
| Production | Harry Wowchuk | Location Manager |
| Crew | Jools Tippett | Special Effects Assistant |
| Crew | Jerome Seven | Special Effects Assistant |
| Visual Effects | Doug Barnett | Mechanical & Creature Designer |
| Visual Effects | Adam Beckett | Animation |
| Production | Susan Arnold | Casting Director |
| Camera | Ben Haller | Key Grip |
| Sound | Joel Goldsmith | Location Sound Mixer |
| Lighting | Michael Katz | Gaffer |
| Directing | Charles H. Eglee | Assistant Director |
| Directing | Greg Gears | Assistant Director |
| Camera | Dana Christiaansen | Assistant Camera |
| Camera | Andrew G. La Marca | Assistant Camera |
| Sound | Tony Santa Croce | Boom Operator |
| Art | Kevin Hughes | Props |
| Art | Kathleen Hughes | Props |
| Camera | Chris Brightman | Grip |
| Camera | Bill Decker | Grip |
| Art | Tim Doughten | Assistant Art Director |
| Editing | Brenda Balanda | Assistant Editor |
| Editing | Stacy Russo | Assistant Editor |
| Directing | Jeanne Rosenberg | Script Supervisor |
| Production | Sharron Reynolds | Production Secretary |
| Production | Ashley Stieglitz | Production Secretary |
| Costume & Make-Up | Jack Buehler | Wardrobe Assistant |
| Camera | O. C. Perkins | Still Photographer |
| Camera | Ted Boehler | Still Photographer |
| Production | Ed Tarbutton | Production Assistant |
| Production | Jeff Hoffman | Production Assistant |
| Production | Michael Martin | Production Assistant |
| Production | Jim Boni | Production Assistant |
| Production | Robet Brown | Production Assistant |
| Directing | Dick Lowry | Second Unit Director |
| Production | Tom Hammel | Production Manager |
| Camera | M. Todd Henry | Second Unit Director of Photography |
| Camera | Christopher Tufty | Assistant Camera |
| Camera | Clyde E. Bryan | Assistant Camera |
| Camera | Scott Buttfield | Grip |
| Camera | Moshe Levin | Grip |
| Sound | Richard Anderson | Sound Effects |
| Sound | Dave Yewdall | Sound Effects |
| Sound | Teresa Eckton | Sound Effects |
| Sound | Kendrick Sweet | Dialogue Editor |
| Sound | Valcie Yewdall | Foley |
