Lucas McCain is a fictional character from the American television series The Rifleman, which aired from 1958 to 1963. He is portrayed by actor Chuck Connors and is known for his exceptional marksmanship and strong moral values. Lucas is a widowed father raising his son, Mark McCain, in the post-Civil War American West, facing various challenges in the town of North Fork, New Mexico. The character of Lucas McCain is notable for his iconic lever-action rifle, which he uses to protect his family and uphold justice. The show emphasizes themes of family, honor, and the struggles of frontier life, making Lucas a memorable figure in classic Western television.