Mr. Rettig was the first boy who tagged after Lassie during the famous collie's 20 years on the CBS television network. An already established child star, he was chosen from over 500 other boys to play the 11 year old midwestern farm boy, Jeff Miller, when Lassie (1954) premiered on September 12, 1954. He stayed with the series until 1958. He made his stage debut at age 6 in the touring company of "Annie Get Your Gun", with Mary Martin. His screen debut was at age 9 and he made 17 films. His most memorable screen performance was as the boy with the vivid imagination in The 5,000 Fingers of Dr. T. (1953). Following Lassie (1954) came a troubled life filled with failure to land adult roles, arrests and convictions for growing marijuana and importing cocaine, bankruptcy, divorce, and a string of jobs including photographer, tool salesman, computer programmer, and health club manager. Mr. Rettig was also a long time advocate for the legalization of marijuana.