[citation needed] Following the war, he left the Army and worked in small parts on Broadway, returning to Hollywood for the film Lust for Gold (1949), again uncredited.

In 1952, he played the role of crooked businessman and murderer Arne Mason in episode #90, "Word of Honor", of the television series The Lone Ranger.

He also went uncredited as Clark Kent's psychiatrist in the "Adventures of Superman" episode "The Face and the Voice", and continued to appear in small film roles.

[4] He appeared in several guest roles on television, including Colonel Farnsworth in the short-lived 1964 sitcom No Time for Sergeants,[4]: 769  based on the Andy Griffith film of the same name, but starring Sammy Jackson.

Rorke also appeared in television programs such as I Love Lucy, The Twilight Zone, Thriller (where he also plays a psychologist), Peter Gunn, The Andy Griffith Show, Bonanza, Barnaby Jones, Mister Ed, Wonder Woman, The George Burns and Gracie Allen Show, The Beverly Hillbillies, and The Love Boat.