Cast 34

  1. Bradford Dillman

    Bradford Dillman

    Paul Grogan

  2. Heather Menzies

    Heather Menzies

    Maggie McKeown

  3. Kevin McCarthy

    Kevin McCarthy

    Dr. Robert Hoak

  4. Keenan Wynn
  5. Dick Miller

    Dick Miller

    Buck Gardner

  6. Barbara Steele

    Barbara Steele

    Dr. Mengers

  7. Belinda Balaski
  8. Melody Thomas Scott

    Melody Thomas Scott

    Laura Dickinson

  9. Bruce Gordon

    Bruce Gordon

    Colonel Waxman

  10. Barry Brown

    Barry Brown

    Trooper

  11. Paul Bartel

    Paul Bartel

    Mr. Dumont

  12. Shannon Collins

    Suzie Grogan

  13. Shawn Nelson

    Whitney

  14. Richard Deacon

    Richard Deacon

    Earl Lyon

  15. Janie Squire

    Barbara Randolph

  16. Bill Smillie

    Jailer

  17. Guich Koock

    Guich Koock

    TV Pitchman

  18. Jack Pauleson

    Boy in Canoe

  19. Eric Henshaw

    Father in Canoe

  20. Robert Vinson

    Soldier

  21. Diamond Farnsworth

    Water-skier

  22. Bruce Paul Barbour

    Man in Boat

  23. Robyn Ray

    Screaming Woman

  24. Mike Sullivan

    Dam Guard

  25. Jack Cardwell

    Brandy

  26. Sally Bondi

    Swimming Deb (uncredited)

  27. Eric Braeden

    Eric Braeden

    Dr. Robert Hoak (swimming double) (uncredited)

  28. Joe Dante

    Joe Dante

    Scuba Diver #2 (uncredited)

  29. Amy Holden Jones

    Amy Holden Jones

    Hertz Clerk (uncredited)

  30. Andrew G. La Marca

    Scuba Diver #1 (uncredited)

  31. John Sayles

    John Sayles

    Army Sentry (uncredited)

  32. Phil Tippett

    Phil Tippett

    Scuba Diver (uncredited)

Crew 23

Art

  1. Bill Mellin

    Art Direction

  2. Kerry Mellin

    Art Direction

  3. Jeff Ayers

    Set Decoration

  4. Chris Walas

    Special Props

  5. Robert Short

    Special Props

Camera

  1. Jamie Anderson

    Director of Photography

Costume & Makeup

  1. Rob Bottin

    Rob Bottin

    Special Effects Makeup Artist

  2. Vincent Prentice

    Special Effects Makeup Artist

Crew

  1. Jon Berg

    Jon Berg

    Special Effects

  2. Conrad E. Palmisano

    Conrad E. Palmisano

    Stunt Coordinator

Directing

  1. Joe Dante

    Joe Dante

    Director

Editing

  1. Joe Dante

    Joe Dante

    Editor

  2. Mark Goldblatt

Production

  1. Susan Arnold

    Casting

  2. Hisako Tsukuba

    Hisako Tsukuba

    Co-Producer

  3. Jeff Schechtman

    Executive Producer

  4. Roger Corman

    Roger Corman

    Executive Producer

  5. Jon Davison

    Producer

Sound

  1. Pino Donaggio

    Pino Donaggio

    Original Music Composer

Visual Effects

  1. Phil Tippett

    Phil Tippett

    Creature Design

  2. Dave Morton

    Mechanical & Creature Designer

Writing

  1. John Sayles

    John Sayles

    Screenplay, Story

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