• 
  Edmund Cobb

  Miller, henchman aka X-7 [Ch.9]
• 
  Ralph Byrd

  Greg Sanders, aka The Vigilante
• 
  Ramsay Ames

  Betty Winslow
• 
  Baynes Barron

  2nd Cop [Ch. 10-11]
• 
  Jack Chefe

  Andre, Headwaiter
• 
  Al Ferguson

  Hot Car Gang Boss [Ch.1]
• 
  Lane Bradford

  Andy [Ch.1]
• 
  Al Wyatt

  Movie Henchman [Ch. 1]

• 
  Lyle Talbot

  George Pierce
• 
  Emmett Lynn

  Pop

• 
  Ira H. Morgan

  imagine
• 
  Sidney Cutner

  music department
• 
  Sam Katzman

  producător
• 
  Herbert B. Leonard

  production manager
• 
  George Montgomery (II)

  set decorator