Maddy
Barry
Shelby
Josh
Chet
Kyle
Big Dave
Travis
Ashley
David Hasselhoff
Mr. Goodman
Andrew
Clayton
Mo
Bethany
Freckled Boy
Young Mother
Rochelle
Dawn
Hysteric / Stocky Woman
Fearful Woman
Waterpark Patron
Bimbo Lifeguard
Kiki
Deputy Fallon (uncredited)
Massacre victim (uncredited)
Lizzie the Lifeguard (uncredited)
Wet T-Shirt Girl (uncredited)
Lifeguard (uncredited)
"A" Camera Operator
Characters
Editor
Producer
Producer
Original Music Composer
Writer
Writer
Editor
Casting
Production Design
Director
Characters
Editor
Writer
Producer
Director of Photography
Visual Effects
Stunt Double
Stunt Double
Utility Stunts
Stunt Double
Utility Stunts
Stunts
Key Hair Stylist
First Assistant Director
Key Makeup Artist
Supervising Music Editor
Sound Effects Editor
Visual Effects Supervisor
Music Editor
Script Supervisor
Makeup Department Head
Special Effects Supervisor
Costume Supervisor
Music Supervisor
Stunt Coordinator
Key Costumer
Production Coordinator
Supervising Sound Editor
Art Department Coordinator
Set Decoration
Costume Design
Sound Effects Editor
Executive Producer
Executive Producer's Assistant
Executive Producer
Dialogue Editor
Dialogue Editor