In Rio de Janiero to arrest a nightclub singer on suspicion of a murder in Hawaii, Charlie Chan becomes involved with the Rio police in solving the singer's own murder.
| Actor | Role |
|---|---|
 Sidney TolerLt. Charlie Chan | Lt. Charlie Chan |
 Victor Sen YungJimmy Chan | Jimmy Chan |
 Harold HuberSenior Souto, police chief | Senior Souto, police chief |
 Mary Beth HughesJoan Reynolds | Joan Reynolds |
 Cobina WrightGrace Ellis | Grace Ellis |
 Victor JoryAlfredo Cardozo, alias Marana | Alfredo Cardozo, alias Marana |
 Kay LinakerHelen Ashby | Helen Ashby |
| HHamilton MacFaddenBill Kellogg | Bill Kellogg |
 Richard DerrKen Reynolds | Ken Reynolds |
 Ted NorthClark V. Denton | Clark V. Denton |
 Truman BradleyPaul Wagner | Paul Wagner |
 Iris WongLili Wong | Lili Wong |
 Jacqueline DalyaLola Dean | Lola Dean |
| LLeslie DenisonRice the Butler (uncredited) | Rice the Butler (uncredited) |
 Ann CodeeMargo the Cook (uncredited) | Margo the Cook (uncredited) |
 Eugene BordenArmando, club headwaiter (uncredited) | Armando, club headwaiter (uncredited) |