• 
  Steven Berkoff

  Student on field trip
• 
  Michael Gough

  Dr. Charles Decker
• 
  George Pastell

  Prof. Tagore
• 
  John Welsh

  Commissioner Garland
• 
  Grace Arnold

  Miss Barnesdell (Foster's secretary)
• 
  Jack Watson

  Supt. Brown
• 
  Waveney Lee

  Janet Kenton
• 
  Nicholas Bennett

  Daniel

• 
  Jess Conrad

  Bob Kenton
• 
  Vanda Godsell

  Bob's Mother
• 
  Claire Gordon

  Sandra Banks
• 
  Margo Johns

  Margaret
• 
  Stanley Morgan

  Insp. Lawson
• 
  Rupert Osborne

  Eric Kenton
• 
  Leonard Sachs

  Bob's Father

• 
  Kim Tracy

  Mary
• 
  Austin Trevor

  Dean Foster

• 
  Desmond Dickinson

  imagine
• 
  Gerard Schurmann

  departament sunet
• 
  Jack Slade

  montaj
• 
  Jim O'Connolly

  producător