• 
  Robert Stevenson

  regizor

• 
  Roland Pertwee

  scenarist
• 
  J.O.C. Orton

  scenarist
• 
  E.V.H. Emmett

  scenarist
• 
  Curt Siodmak

  scenarist

• 
  John Loder

  Inspector Jim Grant
• 
  Anna Lee

  Jennie Carr
• 
  Francis L. Sullivan

  Hugo Brant

• 
  Frank Cellier

  Sam Pryor
• 
  Desmond Tester

  Arnold James
• 
  Athene Seyler

  Aunt Veronica
• 
  William Dewhurst

  Mortimer
• 
  Jerry Verno
• 
  Ellen Pollock
• 
  Arthur Goullet

• 
  Peter Bull
• 
  Tony Quinn
• 
  H.G. Stoker
• 
  Albert Chevalier
• 
  Alf Goddard
• 
  Danny Green
• 
  Bryan Herbert
• 
  Jack Lester
• 
  Andreas Malandrinos
• 
  Hal Osmond
• 
  Frederick Piper
• 
  Edmon Ryan
• 
  Hal Walters
• 
  Sam Wilkinson

• 
  Mutz Greenbaum

  imagine
• 
  Al Barnes

  montaj
• 
  Hubert Bath

  coloană sonoră
• 
  Bretton Byrd

  coloană sonoră