Michael George Ansara ( April 15 , 1922 - July 31 , 2013 ) was a Syrian-born American stage , screen , and voice actor best known for his portrayal of Cochise in the American television series Broken Arrow , Kane in the 1979-1981 series Buck Rogers in the 25th Century , Commander Kang on three different Star Trek television series , Deputy U.S. Marshal Sam Buckhart on the NBC series , Law of the Plainsman , and providing the voice for Mr. Freeze in Batman : The Animated Series and several of its spin-offs .
He was best known for playing of Cochise in the American television series Broken Arrow , Kane in the 1979-81 series Buck Rogers in the 25th Century , Commander Kang on three different Star Trek TV series , Deputy U.S. Marshal Sam Buckhart on the NBC series , Law of the Plainsman , and the voice for villain character Mr. Freeze in the Emmy Award winning series Batman : The Animated Series , The New Batman Adventures , Batman & Mr. Freeze : SubZero , and Batman Beyond .