Stacy played the character 'Johnny Madrid Lancer', a former gunslinger, the son of Duggan's character, Murdoch Lancer. Stacy is perhaps best remembered as a star of the western series Lancer, along with Andrew Duggan, Wayne Maunder, and Paul Brinegar. During the 1960s he made guest appearances in television shows, including multiple episodes of Gunsmoke (S10E13’s “Aunt Thede), Hazel, The Donna Reed Show, Have Gun - Will Travel, Combat!, and Perry Mason in the 1964 episode 'The Case of the Simple Simon' and the series finale 'The Case of the Final Fade-out' in 1966. He had a recurring role as 'Fred' in The Adventures of Ozzie and Harriet from 1958 to 1963. Stacy made his film debut in Sayonara in 1957, and his television debut in Highway Patrol. Stacy was born Maurice William Elias on December 23, 1936, in Los Angeles to an Ulster-Scots waitress and a Lebanese-American bookmaker.