Hartley Power (March 14, 1894 – January 29, 1966) was an American-born British film and television actor. He is best remembered for two roles: "Sylvester Kee" the ventriloquist who is shot and almost killed by "Maxwell Frere" (Michael Redgrave) as a rival for his "dummy"'s affections in Dead of Night and Mr. Hennessy, the chief of the news agency that Gregory Peck worked for in Roman Holiday.

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