Reparto y equipo
-
Reginald OwenSherlock Holmes - Warburton GambleDr. Watson
- Anna May WongMrs. Pyke
- June ClydeEileen Forrester
- Alan DinehartMerrydew
- John WarburtonJohn Stanford
- J. M. KerriganJabez Wilson
- Alfred Ernest WalfordLestrade
- Doris LloydMrs. Murphy
- Billy BevanWill Swallow
- Leila BennettDaffy Dolly
- Wyndham StandingCapt. Pyke
- Halliwell HobbesDearing
- Tetsu KomaiAh Yet (uncredited)
- Tempe PigottMrs. Hudson (uncredited)
- Hobart CavanaughInnkeeper Thompson (uncredited)
- Olaf HyttenMerrydew's Butler (uncredited)
- Edwin L. MarinDirección
- Samuel BischoffProducción
- Robert FloreyEscritor
- Reginald OwenEscritor