Former "Courtship of Eddie's Father" and "The Incredible Hulk" star Bill Bixby directed eight episodes of Sledge Hammer, and appeared in one episode as a berserk prisoner who recognized Sledge while he was undercover in the episode "Hammer Hits the Rock." Does anyone recognize some of his fellow inmates in the episode?

https://www.imdb.com/title/tt0702663/mediaviewer/rm2497548033/?ref_=ttmi_mi_1_2

https://www.imdb.com/title/tt0702663/mediaviewer/rm3799946497/

The first picture the guy looks like Ed Begley, Jr, but by that time Begley's hair wasn't thinning.