NBC’s Community has cast an actor to play the presumed-dead dad of Chevy Chase’s Pierce — and he’s definitely not who anyone would expect to see as the patriarch.

TVLine has learned exclusively that character actor Larry Cedar — who is arguably “best known” as opium addict/crook/card sharp Leon from HBO’s Deadwood, and happens to be 12 years younger than Chase – will portray Cornelius, the eldest Hawthorne, in an early Season 3 episode.

http://www.tvline.com/2011/09/community-casting-larry-cedar-pierce-father/#more-248671