- Ralph Staubdirector (directed by)
- Frederic Dannaystory, 'The Chinese Orange Mystery' (as Ellery Queen) and
- Manfred Leestory, 'The Chinese Orange Mystery' (as Ellery Queen)
- John Francis Larkinscreen play &
- Rex Taylorscreen play &
- Gertrude Orrscreen play &
- Cortland Fitzsimmonsscreen play
- Walter Merrill(as Anthony Merrill)
- Monte Vandergrift(as Monte Vandegrift)
Rest of cast listed alphabetically
- Marc Cramer(uncredited)
- Lester Dorr(uncredited)
- Frank O'Connor(uncredited)
- Bert Roach(uncredited)
- Carleton Young(uncredited)
- Victor Zobelassociate producer
- Jack A. Martacinematographer (as Jack Marta) (photography)
- Grace Goddardfilm editor
- Philip Fordassistant director (uncredited)
- Harry Jonessound engineer
- Murray Seldeensupervising editor
- Harry Greymusical supervisor
- Arthur Kaycomposer: stock music (uncredited)
- Hugo Riesenfeldcomposer: stock music (uncredited)
- Milan Rodercomposer: stock music (uncredited)
- Heinz Roemheldcomposer: stock music (uncredited)
- Sam H. Steptcomposer: stock music (uncredited)
- Nat Levinepresenter
Crew believed to be complete
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