https://www.metv.com/stories/harry-morgans-real-life-love-of-horses-was-incorporated-into-his-m-a-s-h-character

Real-life cowboy, Harry Morgan.

Harry Morgan became an actor out of loneliness (https://www.metv.com/stories/harry-morgan-became-an-actor-out-of-loneliness)

He had an unorthodox route to stardom.