David Ketchum, born in Quincy, Illinois, abandoned physics studies for entertainment after USO performances. The actor-comedian starred in Camp Runamuck and played Agent 13 on Get Smart. Beyond acting, he became a prolific TV writer, penning episodes for MASH, Happy Days, MacGyver, and numerous other series.
David Ketchum
Website: https://www.imdb.com/name/nm0450495/