Sturdy, stage-trained character actor who made his debut as the district attorney in "Dirty Harry" (1971) and went on to lend solid support to a number of excellent productions, including "The Front" (1976), "Reds" (1981), "Silkwood" (1983) and "Witness" (1985).The German-born Sommer made his first stage appearance as a child performer with the Carolina Playmakers in 1943. After a stint in the US Army, he trained in earnest at the American Shakespeare Festival in Stratford, CT, where he gradually worked his way up from small parts to major roles. Sommer also appeared in a number of productions