Yeah, he was on “Roseanne”, or something, wasn’t he? A good supporting actor.
They got some supporting cast from Roseanne in the early seasons, too. Sarah Gilbert popped up a few times, but Laurie Metcalf just hit it out of the park as Sheldon’s mother, a part that could have been just a one-note caricature (and a nasty one at that) and made it a more sympathetic and believable figure. (Leonard’s mother, however, is still 1-D, and played for laughs, which are few and far between.)