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Sidney Toler as Charlie Chan |
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Benson Fong as Tommy Chan |
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Mantan Moreland as Birmingham Brown, Chauffeur |
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Robert Homans as Capt. Flynn |
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I. Stanford Jolley as Rolf Brot, alias Ralph Brett |
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Virginia Brissac as Mrs. Marsh |
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Jack Norton as Willie Rand |
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Janet Shaw as Gloria Bayne |
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Ben Carter as Ben Carter |
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Victoria Faust as Hulda Swenson / Janet Carter |
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Helen Deverell as Diane Hall |
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Leonard Mudie as Horace Karloss |
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Reid Kilpatrick as Mr. Chester, program announcer |
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Emmett Vogan as Mr. Hamilton |
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Crane Whitley as Henchman Cooper |
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Kernan Cripps as Detective (uncredited) |
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Charles Jordan as Nelson (uncredited) |
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Kenner G. Kemp as Police Radio Expert (uncredited) |
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Milton Kibbee as Herbert Sinclair (uncredited) |
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Frank Mayo as Det. Hodge (uncredited) |
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Leonard Mudie as Horace Karlos (uncredited) |
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Tom Quinn as Chemist (uncredited) |
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Charles Sherlock as Sgt. McGraw (uncredited) |
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Charles Wagenheim as Rausch (uncredited) |
| Directing | Phil Rosen | Director |
| Writing | George Callahan | Writer |
| Writing | Earl Derr Biggers | Characters |
