Full / Real Name: Kazimierz Siemaszko Born: 17 March 1961 (58 years old) Gender: Male
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Casey Siemaszko is an American actor best known for his film roles as 3-D on Back to the Future and Back to the Future Part II, as Billy Tessio on Stand By Me, as Charley Bowdre on Young Guns and as Curley in Of Mice and Men.
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