• 
  Ron Randell

  Michael Lanyard / The Lone Wolf
• 
  Fred F. Sears

  Tex Talbot
• 
  Kernan Cripps

  Policeman searching cellar
• 
  Lane Chandler

  Policeman detaining Marta and Jamison
• 
  Robert Barrat

  Steve Taylor
• 
  I. Stanford Jolley

  Guard at Diamond Exhibit
• 
  Steven Geray

  Mynher Van Groot
• 
  George Tyne

  Paul Braud

• 
  Douglass Dumbrille

  John J. Murdock
• 
  Arthur Space

  Fisher
• 
  Philip Van Zandt

  Joe Brewster
• 
  Alan Mowbray

  Jamison, Lanyard's Valet
• 
  James Todd

  Tanner
• 
  Lee Phelps

  Police Sergeant Henderson

• 
  Philip Tannura

  imagine