 Roland WintersCharlie Chan | Charlie Chan |
 Warren DouglasSgt. Bill Davidson | Sgt. Bill Davidson |
 Louise CurriePeggy Cartwright | Peggy Cartwright |
 Mantan MorelandBirmingham Brown | Birmingham Brown |
 Victor Sen YungTommy Chan | Tommy Chan |
 Philip AhnCaptain Kong | Captain Kong |
 Thayer RobertsCaptain James J. Kelso | Captain James J. Kelso |
 Byron FoulgerArmstrong | Armstrong |
| JJean WongPrincess Mei Ling | Princess Mei Ling |
| SSpencer ChanCargo Officer | Cargo Officer |
 ChabingLillie Mae Wong | Lillie Mae Wong |
 Lee Tung FooArmstrong's Majordomo | Armstrong's Majordomo |
 Jack MowerPolice Guard at Apartment 26 | Police Guard at Apartment 26 |
| CCharmienne HarkerKelso's Secretary | Kelso's Secretary |
 Paul BryarDesk Sergeant | Desk Sergeant |
| TThornton EdwardsHotel Desk Clerk | Hotel Desk Clerk |
| DDimples CooperLillie Mae Wong | Lillie Mae Wong |
| GGeorge SpauldingDr. Hickey | Dr. Hickey |
| MMary ChanPedestrian (uncredited) | Pedestrian (uncredited) |
| TThayer CheekChinese Boy (uncredited) | Chinese Boy (uncredited) |
| KKenneth ChuckChinese Boy (uncredited) | Chinese Boy (uncredited) |
| TTom ColemanDetective (uncredited) | Detective (uncredited) |
| LLee Tong FooArmstrong's Butler (uncredited) | Armstrong's Butler (uncredited) |
| CCharmienne HarkerKelso's Stenographer (uncredited) | Kelso's Stenographer (uncredited) |
 Joseph C. NarcisseDock Worker (uncredited) | Dock Worker (uncredited) |
 Cap SomersDock Worker (uncredited) | Dock Worker (uncredited) |
| RRichard WangHamishin (uncredited) | Hamishin (uncredited) |
