The Master Key is a 1914 American silent film serial directed by Robert Z. Leonard. It is considered to be lost, with only episode 5 of 15 surviving in the Library of Congress. In parallel with the weekly film releases, Universal Film offered newspaper a print serial work illustrated with stills from the film. These were complied into a "photo-play" edition of The Master Key published by Grosset & Dunlap in 1915.
Cast Robert Z. Leonard as John Dore Ella Hall as Ruth Gallon Harry Carter as Harry Wilkerson Jean Hathaway as Jean Darnell Alfred Hickman as Charles Everett Wilbur Higby as Tom Gallon Charles Manley as Tom Kane Jack Holt as Donald Faversham Jim Corey as Wah Sing Allan Forrest Mack V. Wright Rupert Julian Cleo Madison Edward A. Mills James Robert Chandler (credited as Robert Chandler) Marc Robbins
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