• 
  Michael Crichton

  regizor

• 
  Martin Sheen

  Timothy Drew
• 
  Ben Gazzara

  Steven Graves
• 
  William Windom

  Robert Phillips
• 
  Quinn K. Redeker

  Captain Morrison
• 
  Diki Lerner

  Nerve Gas Victim
• 
  Joseph Wiseman

  Dr. Nordman
• 
  E.G. Marshall

  James Wright

• 
  Hank Brandt

  Agent
• 
  Will Kuluva

  Dr. Wolff
• 
  Conrad Bachmann

  Second Officer

• 
  Jerry Goldsmith

  departament sunet
• 
  Gene Fowler Jr.

  montaj
• 
  Lee Rich

  producător
• 
  Robert Emmet Smith

  design de producţie

• 
  Michael Crichton

  scriitor