65 mins | Thriller, Mystery | May 11, 1945
65 mins | Thriller, Mystery | May 11, 1945
| IMDb rating | 6.3 |
| Producers | Monogram Pictures |
| Original title | The Scarlet Clue |
| Directors | Phil Rosen |
| Writers | George Callahan, Earl Derr Biggers |
as Charlie Chan
as Tommy Chan
as Birmingham Brown, Chauffeur
as Capt. Flynn
as Rolf Brot, alias Ralph Brett
as Mrs. Marsh
as Willie Rand
as Gloria Bayne
as Ben Carter
as Hulda Swenson / Janet Carter
as Diane Hall
as Horace Karloss / Horace Karlos (uncredited)
as Mr. Chester, program announcer
as Mr. Hamilton
as Henchman Cooper
as Detective (uncredited)
as Nelson (uncredited)
as Police Radio Expert (uncredited)
as Herbert Sinclair (uncredited)
as Det. Hodge (uncredited)
as Chemist (uncredited)
as Sgt. McGraw (uncredited)
as Rausch (uncredited)