 In the 1940s, he had a regular role as a young lawyer on a radio soap opera.He acted on the "CBS Radio Mystery Theater" from 1974 to 1982, appearing in 189 episodes -- more than 12% of the entire run of the 1,399 episodes of that radio series.Hammond started his television career in the early 1950s, his first major role being as a regular called Sergeant Lane on the DuMont police drama "Inside Detective" (aka "Rocky King Detective").