Lloyd Nelson, a native of Minneapolis, began his journey in radio broadcasting after attending radio school. His early career took him to several stations in the mid-south and the Twin Cities market before his draft, which led him to pursue a new path.
Using the G.I. Bill, Nelson attended the prestigious Pasadena Playhouse in Hollywood, where he made his film debut in a small, uncredited role in "The Court Jester" in 1956. His breakthrough came when producer-director Jerry Warren discovered him in a little theater production, casting him in a starring role in "Man Beast" (1956),Nelson's first collaboration with Warren, under the pseudonym "Lloyd Cameron," due to the film's non-union status.
During his time at the Pasadena Playhouse, Nelson landed a job as a dialogue coach on the popular TV series "Lassie," where he worked closely with child star Jon Provost, who, according to Nelson, struggled with reading. Over the course of his long tenure on the show, Nelson honed his skills as a script supervisor and eventually transitioned to that role.
After retiring from script supervising, Nelson pursued a new career in law enforcement, completing the police academy and becoming a reserve officer.