• 
  Tom Gries

  regizor

• 
  Bill McKinney

  Mr. Brown
• 
  John Forsythe

  Dr. Robert Kier
• 
  Season Hubley

  Ann Kilmer
• 
  Jacqueline Porel
• 
  Liam Dunn

  Mr. Addison
• 
  Anthony Zerbe

  Dr. Albert Scanlon
• 
  Michael C. Gwynne

  Dr. Anton Balinowski

• 
  Ellen Weston

  Barbara, Secretary to Dr. Kier
• 
  Paul Mantee
• 
  Pat Harrington Jr.

  Joe Tate
• 
  John McIntire

  Dr. Ernest Wilson
• 
  Beverly Garland

  Laura Kier

• 
  David Shire

  departament sunet
• 
  Michael A. Hoey

  montaj

• 
  Jerry Thorpe

  producător
• 
  John Furia

  producător
• 
  Sid McCoy

  producător
• 
  Howard Dimsdale

  scriitor
• 
  John Furia

  scriitor