• 
  Gordon Flemyng

  regizor

• 
  Peter Cushing

  Dr. Who
• 
  Jennie Linden

  Barbara
• 
  Geoffrey Toone

  Temmosus
• 
  Martin Grace

  Thal
• 
  Yvonne Antrobus

  Dyoni
• 
  John Bown

  Antodus
• 
  Roy Castle

  'Ian'

• 
  Michael Coles

  Ganatus
• 
  Nicholas Head

  Thal
• 
  Barrie Ingham

  Alydon
• 
  Mike Lennox

  Thal
• 
  Mark Petersen

  Elyon
• 
  Roberta Tovey

  'Susan'
• 
  Virginia Tyler

  Thal

• 
  Jack Waters

  Thal
• 
  Ken Garady

  Thal

• 
  Milton Subotsky

  producător
• 
  Max Rosenberg

  producător
• 
  John Wilcox

  imagine
• 
  Oswald Hafenrichter

  montaj
• 
  Barry Gray

  music department
• 
  Anthony Waye

  second unit director or assist
• 
  Scott Slimon

  set decorator
• 
  John Cox (I)

  sound department
• 
  Tom Priestley

  sound department
• 
  Milton Subotsky

  scriitor
• 
  Terry Nation

  scriitor