From Wikipedia, the free encyclopedia. Ashton Holmes (born February 17, 1978 height 5' 8½" (1,74 m)) is an American actor of film and television and a former soap opera actor, best known for the role of Jack Stall in A History of Violence and Private Sidney Phillips in the HBO miniseries The Pacific. Description above from the Wikipedia article Ashton Holmes, licensed under CC-BY-SA, full list of contributors on Wikipedia.