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Keye Luke as James Lee Wong |
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Lotus Long as Win Lee, Benton's Secretary |
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Grant Withers as Police Captain Street |
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Charles Miller as Dr. John Benton / Cyrus Benton in Newspaper (as Charles Miller) |
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Huntley Gordon as Dr. Norman Wilkes |
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Virginia Carpenter as Louise Benton |
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John Dilson as Charlie Frasier |
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Paul McVey as Detective Grady |
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John Holland as Mason |
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Richard Terry as Toreno |
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Robert Kellard as Tommy Dean |
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Willy Castello as Jonas |
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Lee Tung Foo as Foo |
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Lynton Brent as Radio News Broadcaster |
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Jack Cheatham as Stakeout Cop |
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Heinie Conklin as Detective in Refrigerator |
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William Gould as Policeman |
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Bruce Mitchell as Police Officer Stationed at Front Door |
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William J. O'Brien as Extra in Audience at Benton's Lecture |
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Victor Wong as Charley Won |
| Directing | Phil Rosen | Director |
| Production | Paul Malvern | Producer |
| Writing | George Waggner | Screenplay |
| Writing | Ralph Gilbert Bettison | Story |
| Camera | Fred Jackman Jr. | Director of Photography |
| Editing | Jack Ogilvie | Editor |
| Sound | Edward J. Kay | Music |
| Writing | Hugh Wiley | Characters |
| Art | Charles Clague | Art Direction |
