• 
  Roy Ward Baker

  regizor

• 
  Anthony Hinds

  scenarist

• 
  John Mills

  Dr. John H. Watson / Naratorul
• 
  Anne Baxter

  Irene Adler / Mrs. Norton
• 
  Peter Cushing

  Sherlock Holmes
• 
  Anton Gilbert

  Anton Von Felseck
• 
  Marcus Gilbert

  Anton Von Felseck
• 
  John G. Jones

  Home Secretary

• 
  Anton Diffring

  Graf Udo Von Felseck of Purbridge Manor
• 
  James Cossins

  Frederick Bains, Shipping Magnate
• 
  Susan Penhaligon

  Miss Derwent
• 
  Gordon Jackson

  Inspector Alec MacDonald of Scotland Yard
• 
  Ray Milland

  Home Secretary