After the events at Lake Victoria, the prehistoric school of blood-thirsty piranhas make their way into swimming pools, plumbing, and a newly opened water park.
| Production | Joel Soisson | Producer |
| Writing | Josh Stolberg | Characters |
| Art | Ermanno Di Febo-Orsini | Production Design |
| Production | Nancy Nayor | Casting |
| Writing | Patrick Melton | Writer |
| Production | Marc Toberoff | Producer |
| Sound | Elia Cmiral | Original Music Composer |
| Writing | Marcus Dunstan | Writer |
| Production | Mark Canton | Producer |
| Camera | Alexandre Lehmann | Director of Photography |
| Directing | John Gulager | Director |
| Writing | Joel Soisson | Writer |
| Editing | Devin C. Lussier | Editor |
| Editing | Martin Bernfeld | Editor |
| Writing | Pete Goldfinger | Characters |
| Editing | Kirk M. Morri | Editor |
| Sound | Matt Friedman | Music Editor |
| Costume & Make-Up | Kari Delaney | Key Hair Stylist |
| Costume & Make-Up | Catherine Bayley | Key Costumer |
| Directing | Alisa Fredericks | First Assistant Director |
| Art | Emma Madeline Ross | Art Department Coordinator |
| Sound | Alexander Pugh | Sound Effects Editor |
| Costume & Make-Up | Holly Sago | Key Makeup Artist |
| Costume & Make-Up | Cecilia Veradi | Makeup Department Head |
| Sound | Trip Brock | Supervising Sound Editor |
| Costume & Make-Up | Carol Cutshall | Costume Design |
| Visual Effects | David Beavis | Special Effects Supervisor |
| Costume & Make-Up | Victor M. Giarrusso | Costume Supervisor |
| Art | Thurston Edwards | Set Decoration |
| Visual Effects | Jeff Lietz | Visual Effects Supervisor |
| Crew | John Copeman | Stunt Coordinator |
| Sound | Mike Flicker | Supervising Music Editor |
| Directing | Amber Harley | Script Supervisor |
| Sound | Peter D. Lago | Sound Effects Editor |
| Production | Jason Salzman | Production Coordinator |
| Sound | Richard Glasser | Music Supervisor |
| Production | Harvey Weinstein | Executive Producer |
| Production | Bob Weinstein | Executive Producer |
| Sound | Ian Shedd | Dialogue Editor |
| Sound | Jackie Johnson | Dialogue Editor |
| Camera | Bo Webb | "A" Camera Operator |
| Visual Effects | Pratik Chaudhari | Visual Effects |
| Crew | Jennifer Badger | Stunt Double |
| Crew | Ashley Cusato | Utility Stunts |
| Crew | Angelique Fawcette | Stunt Double |
| Crew | Jeremy Owens | Stunts |
| Crew | Dino Muccio | Utility Stunts |
| Crew | Tina Fuchs Wanner | Stunt Double |
