In his last film -- and only Talkie -- Lon Chaney recreates one of his famed Silent roles: the scheming ventriloquist Prof. Echo. Disguised as Grandma O'Grady, Echo heads a robbery ring that includes a feeble-minded strongman and a cigar-chomping little person, the latter masquerading as Grandma's grandbaby. Known as the Man of a Thousand Faces, Chaney here displays a different kind of virtuosity as well, creating five different voices to portray Echo, Grandma, a parrot, a girl and Echo's dummy. A big hit directed by Jack Conway, The Unholy Three promised to launch Chaney as a major Sound Era star. He was slated to play the title role in Tod Browning's Dracula, but it was not to be. Chaney died only weeks after The Unholy Three premiered.