| Actor | William Gillette (as Sherlock Holmes), Marjorie Kay (as Alice Faulkner), Ernest Maupain (as Professor Moriarty), Edward Fielding (as Dr. Watson), Mario Majeroni (as James Larrabee), Grace Reals (as Madge Larrabee), William Postance (as Sidney Prince), Stewart Robbins (as Benjamin Forman), Burford Hampden (as Billy), Chester Beery (as Craigin), Frank Hamilton (as Tim Leary), Fred Malatesta (as 'Lightfoot' McTague), Leona Ball (as Thérèse), Hugh Thompson (as Sir Edward Leighton), Ludwig Kreiss (as Baron von Stalburg), Jack Milton (as Alfred Bassick), Edward Arnold (as Moriarty Henchman In Striped Cap (uncredited)) |
