I remember him in the Mike Hammer series. My wife remembered him in Blue Bloods (she's a big fan of the show).
https://variety.com/2026/film/news/stacy-keach-dead-mike-hammer-fat-city-1236944687/
https://variety.com/2026/film/news/stacy-keach-dead-mike-hammer-fat-city-1236944687/