- Ralph Graves
- Walter Prescott
- Ruth Mix
- Dorothy Dale
- Dave O'Brien
- Terry Navarro
- Constance Bergen
- Virginia Caswell
- Matthew Betz
- Henry Jensen
- Robert Frazer
- James Hackett
- 'Snub' Pollard
- Vic Moran
- Robert Walker
- Capt. 'Shark' Malone
- Bryant Washburn
- Frank Caswell
- Clara Kimball Young
- Donna Luise Navarro
- Josef Swickard
- Don Pedro Navarro [Chs. 2-4, 13-15]
- Blackie Whiteford
- Quinn McGuire - Malone's Mate
- Yakima Canutt
- Ed McMahan - Thug [Chs. 3,10-14]
- Jackie Miller
- Bobbie - Native Boy [Chs. 5-7]
- Lane Chandler
- Evans - Airline Official [Chs.1-2]
- Pete De Grasse
- Ali Ben Abba [Chs.1-2]
- Roger Williams
- Gleason - Cantina Owner / Thug [Chs. 3-4, 10-15]
- Walter Taylor
- Herb - Henchman [Chs. 12-14]
- Richard Cramer
- Hank Flaherty - Thug [Chs. 3, 10, 12-15]
- Joe Garcio
- Ozzie - Henchman [Chs.13-15]
- Juan Duval
- Juan - Navarro Servant [Chs.3-4]
- Lew Meehan
- Billings - Ortega Foreman [Chs. 8-10]
- Carter Wayne
- 'Bucko' Anderson - Sailor [Chs. 3-4]
- William Desmond
- Cantina Bartender
- Milburn Morante
- Slim [Chs. 5-6]
- Carl Mathews
- Spotty - Henchman
- Rondo Hatton
- Stock footage from 'Hell Harbor'
- Ted Adams
- Auto Mechanic [Ch. 11]
- Jimmy Aubrey
- Soldier / Native Guard (uncredited)
- Earl Douglas
- Henchman
- John Elliott
- Señor Ortega [Chs. 8-9]
- Frank Hagney
- Purcell - Henchman [Chs. 11-14]
- Harry Harvey
- Airline Pilot - Chs. 1-2
- Herbert Holcombe
- Henchman
- Al Kikume
- Fight Starter in Cafe [Ch. 1]
- Pascale Perry
- Outlaw [Chs. 8-10]
