 Richard WebbLane Carson | Lane Carson |
 Aline TowneCarol Richards | Carol Richards |
 Stanley PriceThe Phantom Ruler | The Phantom Ruler |
 Lane BradfordBurton | Burton |
 John CrawfordHarris | Harris |
 George Meeker"Harry Long" | "Harry Long" |
 Edward KeaneWarren Madison | Warren Madison |
 Dale Van SickelOtto Wagner, aka "Frank Martin" | Otto Wagner, aka "Frank Martin" |
 Douglas Evans"James Hunter" | "James Hunter" |
 John Hamilton"Henry Miller" | "Henry Miller" |
 Roy GordonMr. Moore | Mr. Moore |
 Harold GoodwinKirk - Body-Shop Henchman [Ch.11] (uncredited) | Kirk - Body-Shop Henchman [Ch.11] (uncredited) |
 Marshall ReedRoadblock Cop [Ch. 1, 7] | Roadblock Cop [Ch. 1, 7] |
 David SharpeGarage Watchman [Ch. 3] / Armored Car Guard [Ch. 11] | Garage Watchman [Ch. 3] / Armored Car Guard [Ch. 11] |
 George MagrillHenchman Sam [Ch. 4-5] | Henchman Sam [Ch. 4-5] |
 Guy TeagueDecoy & Dumptruck Henchman [Ch. 5, 7] | Decoy & Dumptruck Henchman [Ch. 5, 7] |
| TTom SteeleHenchman Bill 'Mack' Haines [Chapters 5, 10] | Henchman Bill 'Mack' Haines [Chapters 5, 10] |
 Eddie ParkerBarn Henchman Stoner [Ch.8] | Barn Henchman Stoner [Ch.8] |
 Keith RichardsDoctor [Ch. 12] | Doctor [Ch. 12] |
| DDuke TaylorSecond Roadblock Cop [Ch. 1 bit] | Second Roadblock Cop [Ch. 1 bit] |
| MMark StrongBank Watchman [Ch.1 bit] | Bank Watchman [Ch.1 bit] |
| BBert LeBaronCrooked Watchman [Ch. 2 bit] | Crooked Watchman [Ch. 2 bit] |
 Frank O'ConnorChemical Truck Cop [Ch. 5 bit] | Chemical Truck Cop [Ch. 5 bit] |
| FForrest BurnsWatchman Joe [Ch. 5 bit] | Watchman Joe [Ch. 5 bit] |
 Carey LoftinDynamite Henchman Dirk [Ch. 6 bit] | Dynamite Henchman Dirk [Ch. 6 bit] |
| TTom MonroeCave Policeman [Ch. 7 bit] | Cave Policeman [Ch. 7 bit] |
 Howard M. MitchellSecond Garage Watchman [Ch. 7 bit] | Second Garage Watchman [Ch. 7 bit] |
 Charles SullivanSquadcar Cop [Ch. 7 bit] | Squadcar Cop [Ch. 7 bit] |
| GGeorge VolkSecond Armored Car Guard [Ch. 11 bit] | Second Armored Car Guard [Ch. 11 bit] |
