Capitol Records (Baron also recorded comedy albums) · Public domain

A Brooklyn-born comedian who rose through the Catskills' Borscht Belt circuit and the Compass Players improv troupe before appearing on the satirical series That Was the Week That Was in 1964, going on to open for Frank Sinatra and Diana Ross. Decades later he found a new audience playing Jack Klompus, Jerry's rival at his parents' Florida retirement community, on Seinfeld — a part one critic noted invited comparison to Beckett — and he also co-wrote Lou Rawls's 1971 hit "A Natural Man."