https://www.nytimes.com/2022/12/13/arts/television/stuart-margolin-dead.html (https://www.nytimes.com/2022/12/13/arts/television/stuart-margolin-dead.html)
I loved his characterization of Angel on "Rockford"....
I would have pegged him as older, only because I grew up watching him and he was old enough to be my dad. His M*A*S*H episode was great, too:
https://mash.fandom.com/wiki/Captain_Phillip_G._Sherman