• 
  Jim Wynorski

  regizor

• 
  David Mason

  scenarist

• 
  Patrick Muldoon

  Mike Connors
• 
  Theresa Russell

  Dr. Nancy Burnham
• 
  Curtis Armstrong

  Keach
• 
  Tamara Davies

  Sid Bream
• 
  Rod McCary

  Dr. Shoup
• 
  Dwayne L. Shattuck

  Crewman Miller

• 
  Eric James Virgets

  Deputy Ferguson
• 
  Tim Thomerson

  Sheriff Morgan
• 
  Adam Lieberman

  Crewman Terrance
• 
  Andy Milder

  Chambers (Head of NASA)
• 
  Geoff Stults

  Young Zack Lover
• 
  Daniel Quinn

  Alan
• 
  Rene Rivera

  Gonzales

• 
  Lydie Denier

  Diane Cafferty