• 
  John Guillermin

  regizor

• 
  Francis Durbridge

  scenarist
• 
  A.R. Rawlinson

  scenarist

• 
  Guy Rolfe

  Dr. Fenton
• 
  Lisa Daniely

  Lisa Durand
• 
  Patricia Dainton

  Sister Rogers
• 
  Sydney Tafler

  Wade
• 
  Anton Diffring

  Shroder

• 
  Michael Golden
• 
  Brian Worth

  Geoffrey Terry
• 
  Eric Berry
• 
  James Raglan

  Sir Oliver Peters