 Dick PowellCommissioner Michael Barrows | Commissioner Michael Barrows |
 Signe HassoAnn Grant | Ann Grant |
 Maylia FongShu Pan Wu | Shu Pan Wu |
 Ludwig DonathNicholas Sokim | Nicholas Sokim |
 Vladimir SokoloffCommissioner Lum Chi Chow | Commissioner Lum Chi Chow |
 Edgar BarrierGrieg | Grieg |
 John HoytGeorge C. Shannon | George C. Shannon |
 Marcel JournetCommissioner Lariesier | Commissioner Lariesier |
 Luis van RootenCommissioner Alberto Berado | Commissioner Alberto Berado |
 Fritz LeiberBinda Sha | Binda Sha |
| HHarry J. AnslingerCommissioner H.J. Anslinger | Commissioner H.J. Anslinger |
 Vernon SteeleCommissioner Lionel Hadley (uncredited) | Commissioner Lionel Hadley (uncredited) |
 Richard LooCommissioner Lu (uncredited) | Commissioner Lu (uncredited) |
 Lou KrugmanCommissioner Amar Hassam (uncredited) | Commissioner Amar Hassam (uncredited) |
 Florence WixMrs. Mary Paine (uncredited) | Mrs. Mary Paine (uncredited) |
 Ivan TriesaultNaftalie Vrandstadter (uncredited) | Naftalie Vrandstadter (uncredited) |
| HHarlan WardeHarry Hardt (uncredited) | Harry Hardt (uncredited) |
| MMichael RaffettoProfessor Salim (uncredited) | Professor Salim (uncredited) |
| PPeter VirgoMahmoud (uncredited) | Mahmoud (uncredited) |
| RRobert MalcolmEdward Clark (uncredited) | Edward Clark (uncredited) |
 Leonardo ScavinoHernando (uncredited) | Hernando (uncredited) |
 Blue WashingtonBinda Sha Henchman (uncredited) | Binda Sha Henchman (uncredited) |
 Henry KulkyGiant Chinese Man (uncredited) | Giant Chinese Man (uncredited) |
 Victor Sen YungChinese Pilot (uncredited) | Chinese Pilot (uncredited) |
 James B. LeongChinese Driver (uncredited) | Chinese Driver (uncredited) |
 Frank LackteenCamel Driver (uncredited) | Camel Driver (uncredited) |
 Frank MayoShip's Captain (uncredited) | Ship's Captain (uncredited) |
 George J. LewisShip's Cook (uncredited) | Ship's Cook (uncredited) |
| HHorace G. BrownShip's Officer (uncredited) | Ship's Officer (uncredited) |
| DDouglas D. CoppinShip's Officer (uncredited) | Ship's Officer (uncredited) |
