• 
  Wallace Fox

  regizor

• 
  Sam Robins

  scenarist
• 
  Gerald Schnitzer

  scenarist

• 
  Wanda McKay

  Judy Malvern
• 
  John Archer

  Richard Dennison
• 
  Bela Lugosi

  profesorul Brenner / Karl Wagner
• 
  Willy Castello
• 
  Wheeler Oakman

  Stratton

• 
  Walter McGrail
• 
  Vince Barnett

  Charley
• 
  Tom Neal

  Frankie Mills
• 
  Theodore Lorch
• 
  Ray Miller
• 
  Ralph Littlefield
• 
  Pat Costello

• 
  Lucille Vance

  dna. Malvern
• 
  Lew Kelly

  Doc Brooks
• 
  John Berkes

  Fingers Dolan
• 
  J. Farrell MacDonald

  căpitanul Mitchell
• 
  George Eldredge

  detectivul Thompson
• 
  Eddie Kane
• 
  Eddie Hall
• 
  Dave O'Brien

  Pete Crawford
• 
  Bobby Stone
• 
  Bob Reeves
• 
  Bernard Gorcey
• 
  Anna Hope

  dna. Brenner
• 
  'Snub' Pollard

• 
  Sam Katzman

  producător
• 
  Jack Dietz

  producător
• 
  Barney A. Sarecky

  producător
• 
  Mack Stengler

  imagine
• 
  Carl Pierson

  montaj