• 
  Clive Donner

  regizor

• 
  John Hurt

  Mitri Cyon
• 
  Gig Young

  Dr. Ham Hamilton
• 
  Jenny Runacre

  Sydna
• 
  James Villiers

  Sir Geoffrey Cyon
• 
  Majel Barrett

  Lilith
• 
  Robert Culp

  William Sebastian
• 
  Gordon Jackson

  Inspector Cabell

• 
  Ann Bell

  Anitra Cyon

• 
  Terry Wells

  art department
• 
  Frederick Cooper

  camera and electrical departme
• 
  Arthur Ibbetson

  imagine
• 
  John Cameron

  departament sunet
• 
  Peter Tanner

  montaj
• 
  Stuart Freeborn

  make-up department

• 
  Stuart Freeborn

  miscellaneous crew
• 
  Gene Roddenberry

  producător
• 
  Danny Steinmann

  producător
• 
  Gene Roddenberry

  scriitor