Prolific, distinguished character player from the stage who began his film career in 1914. A matinee idol in the 1920s, Blackmer portrayed Teddy Roosevelt more than a dozen times on film and stage and later specialized in unctuous heavies; he is probably best known as the suave devil-worshipper Roman Castevet in "Rosemary's Baby" (1968).
Education
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University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, law
Milestones
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1914 First film as actor in "The Perils of Pauline"
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1917 Stage acting debut
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1919 First stage production as star, "39 East"
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1950 Starred opposite Shirley Booth in Broadway production of "Come Back, Little Sheba"
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1968 Played Roman Castavet in "Rosemary's Baby"