• 
  Stewart Raffill

  regizor

• 
  Charles Berlitz

  scenarist

• 
  Michael Paré

  David Herdeg
• 
  Nancy Allen

  Allison Hayes
• 
  Eric Christmas

  Dr. James Longstreet
• 
  Bobby Di Cicco

  Jim Parker
• 
  Louise Latham

  Pamela
• 
  Kene Holliday

  Major Clark

• 
  Ralph Manza

  Older Jim
• 
  Michael Currie

  Magnussen
• 
  Stephen Tobolowsky

  Barney
• 
  Pamela Brull

  Doris
• 
  Joe Dorsey

  Sheriff Bates
• 
  Michael Villani

  TV Newscaster #2
• 
  Gary Brockette

  Adjutant/Andrews

• 
  Rodney Saulsberry

  Doctor
• 
  Glenn Morshower

  Mechanic
• 
  James Edgcomb

  Officer Boyer
• 
  Miles McNamara

  Young Longstreet (as Miles Mc Namara)
• 
  Debra Troyer

  Young Pamela