| Warren Hull | Britt Reid / Green Hornet | 
    
    
      | Anne Nagel | Lenore Case | 
    
    
      | Keye Luke | Kato | 
    
    
      | Pierre Watkin | Boss Crogan | 
    
    
      | Wade Boteler | Michael Axford | 
    
    
      | Eddie Acuff | Lowery - a Reporter | 
    
    
      | Arthur Loft | Tauer - Chief Gangster | 
    
    
      | James Seay | Bordine - a Gangster | 
    
    
      | Joe Devlin | Joe Dolan - Henchman | 
    
    
      | William Hall | Don DeLuca - Henchman | 
    
    
      | Dorothy Lovett | Frances Grayson / Stella Merja | 
    
    
      | Jay Michael | Foranti - Construction Racketeer | 
    
    
      | Charles Miller | George K. Otterson | 
    
    
      | Jean Brooks | Gloria Manning | 
    
    
      | Irving Mitchell | Breedon | 
    
    
      | William Forrest | Frederick Harper | 
    
    
      | Eddie Dunn | Foley - Racketeer | 
    
    
      | C. Montague Shaw | Weaver - Gang Chemist | 
    
    
      | Roy Barcroft | Cop at Newspaper Truck Vandalism | 
    
    
      | Robert Barron | Haggis - Crooked Nightclub Owner | 
    
    
      | James Blaine | Jason Eldridge | 
    
    
      | Al Bridge | Ship's Captain | 
    
    
      | Ralph Brooks | Cain's Assistant | 
    
    
      | Henrietta Burnside | Mrs. Carter - Widow | 
    
    
      | William P. Carleton | Gloria's Father | 
    
    
      | Allan Cavan | Police Chief Harding | 
    
    
      | Lane Chandler | Cop Car-Chasing Foranti | 
    
    
      | Stephen Chase | Mr. Evans - Construction Engr. | 
    
    
      | Jack Cheatham | Pete - Steelmill Watchman | 
    
    
      | Jack Rube Clifford | McCoig - Homeowner Thug | 
    
    
      | Harry Cording | Dannick - Crooked Construction Foreman | 
    
    
      | Hal Craig | Police Patrolman | 
    
    
      | Eddie Dew | Henchman-Delivery Man | 
    
    
      | Frank Ellis | Bill, Steel Mill Guard | 
    
    
      | Jack Ellis | Franks - Gangster | 
    
    
      | Eugene L. Eubank | Theodore - Crooked Financier | 
    
    
      | Harry Fleischmann | Gault | 
    
    
      | Joseph Forte | Miss Grayson's Butler | 
    
    
      | Jerry Frank | Silk Truck Driver | 
    
    
      | Alan Gregg | Injured Truck Driver | 
    
    
      | Earl Gunn | Manning #2 - Thug | 
    
    
      | Karl Hackett | Hansen, the Stranger | 
    
    
      | Frank Hagney | Warehouse Truck Loader | 
    
    
      | Alfred Hall | Mr. Marsden | 
    
    
      | Chuck Hamilton | Policeman at Breedon's House | 
    
    
      | Edward Hearn | Patrol Cop | 
    
    
      | John Holland | Grinson - Foreign Agent | 
    
    
      | Frank Hoose | Crawford - Crooked Executive | 
    
    
      | Reed Howes | Policeman at Breedon's House | 
    
    
      | Richard Kipling | Dr. J.C. Bedloe | 
    
    
      | Bob Kortman | Gang Farmhouse Owner | 
    
    
      | Ethan Laidlaw | Jenkins, aka Jennings | 
    
    
      | Tom London | Thug with Explosives | 
    
    
      | Pierce Lyden | Tonjes - Gang Pilot | 
    
    
      | George Magrill | Spike - Henchman with Bordine | 
    
    
      | Philo McCullough | Milton - Chief Plant Guard | 
    
    
      | Paul McVey | Kenneth North | 
    
    
      | John Merton | Thug at Rear of Truck | 
    
    
      | Thomas Mizer | Newspaper Truck Driver | 
    
    
      | Frank O'Connor | Police Patrolman | 
    
    
      | Jimmy O'Gatty | Jasper Vale - Arsonist | 
    
    
      | Pat O'Malley | Editor Gunnigan | 
    
    
      | Nestor Paiva | Rufus - Henchman in Hawaii | 
    
    
      | Eddie Parker | Henchman with Dolan | 
    
    
      | Ed Payson | Al - Thug at Locust St. Warehouse | 
    
    
      | Jack Perrin | Gunner - Army Deserter | 
    
    
      | Jason Robards Sr. | Foley's Bodyguard | 
    
    
      | William Ruhl | J.E. Lynch - Gang Attorney | 
    
    
      | Dick Rush | Policeman at Breedon's Home | 
    
    
      | Walter Sande | Thug Boss at Gold Star Warehouse | 
    
    
      | Clarence Straight | Snipe's Partner | 
    
    
      | Harry Strang | Joe - Henchman | 
    
    
      | Barry Sullivan | Thug in Car's Back Seat | 
    
    
      | Forrest Taylor | Snipe - Foranti Thug | 
    
    
      | Ray Teal | Chief Guard at Steel Mill | 
    
    
      | Richard Travis | Nightclub Headwaiter | 
    
    
      | Phil Warren | C. Smith - Thug | 
    
    
      | Allen Wood | Photographer | 
    
    
      | Bert Young | Silk Truck Passenger | 
    
    
      | Louise Currie | Bordine's Girlfriend |