Actor Ivan Dixon, who brought the problems and promise of contemporary blacks to life in the film "Nothing But a Man" and portrayed the levelheaded POW Kinchloe in TV's "Hogan's Heroes," has died. He was 76. Dixon died Sunday at Presbyterian Hospital in Charlotte after a hemorrhage, said his daughter, Doris Nomathande Dixon of Charlotte. He had suffered complications from kidney failure, she said. Dixon, who also directed scores of television shows, began his acting career in the late 1950s. He appeared on Broadway in William Saroyan's 1957 "The Cave Dwellers" and in playwright Lorraine Hansberry's groundbreaking 1959 drama of black life, "A Raisin in the Sun." In the latter, he played a Nigerian student visiting the United States, a role he repeated in the film version. While not a hit, the 1964 "Nothing But a Man," in which Dixon co-starred with Abbey Lincoln, also drew praise as a rare, early effort to bring the lives of black Americans to the big screen.