Theodore Tillman Shackelford III (born June 23, 1946) is an American actor, known for his roles on television. He played Gary Ewing in the CBS prime time soap operas ''Dallas'' and its spin-off ''Knots Landing'' (1979–1993), and had a recurring role portraying twin brothers William and Jeffrey Bardwell on the CBS daytime soap opera, ''The Young and the Restless'' (2006—2015).
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Theodore Tillman Shackelford III (born June 23, 1946) is an American actor, known for his roles on television. He played Gary Ewing in the CBS prime time soap operas ''Dallas'' and its spin-off ''Knots Landing'' (1979–1993), and had a recurring role portraying twin brothers William and Jeffrey Bardwell on the CBS daytime soap opera, ''The Young and the Restless'' (2006—2015).
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