• 
  Michael Chapman

  regizor

• 
  Geoffrey Lewis

  Prof. Alan Jeffries
• 
  Nicole Eggert

  Elyse Jeffries
• 
  Biff Yeager

  FBI Agent #1
• 
  Toni Attell

  Patty
• 
  Al Pugliese

  Agent #2
• 
  Julie Harris

  Girl
• 
  Lisa Blount

  Cindy

• 
  John Durbin

  Trucker
• 
  Susan Blakely

  Layla
• 
  Mark Lindsay Chapman

  Richard Armour
• 
  Catherine Mary Stewart

  Angela Taylor
• 
  Earl Boen

  Sid
• 
  Richard Partlow

  FBI Agent #2
• 
  Brion James

  Alien Leader

• 
  Greg Collins

  Poliţist
• 
  Paul Brinegar

  Pops
• 
  Barry Pearl

  Eddie

• 
  Donald Paul Pemrick

  casting director
• 
  Sylvester Levay

  departament sunet
• 
  Frank Mazzola

  montaj
• 
  Michael Westmore (I)

  make-up department
• 
  Roderick Taylor

  producător
• 
  Alex Beaton

  producător
• 
  Bruce A. Taylor

  producător
• 
  Shawn Patrick

  cascador
• 
  Roderick Taylor

  scriitor
• 
  Bruce A. Taylor

  scriitor