Cast & Crew
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Boris KarloffGruesome - Ralph ByrdDick Tracy
- Anne GwynneTess Trueheart
- Edward AshleyDr. L. E. Thal
- June ClayworthDr. I.M. Learned
- Lyle LatellPat Patton
- Tony Barrett"Melody" Fiske
- Skelton KnaggsX-Ray
- James NolanDan Sterne
- Joseph CrehanChief Brandon
- Milton ParsonsDr. A. Tomic
- Lex BarkerCity Hospital Driver (uncredited)
- Lee PhelpsDetective in Car (uncredited)
- Sean McCloryOfficer Carney (uncredited)
- Harry HarveyHumphrey
- Harry StrangTim
- William Gould"Pop"
- John RawlinsDirector
- Herman SchlomProducer
- Robertson WhiteWriter
- Eric TaylorWriter