Wasn't Dabney Coleman actually famous?

dlisted has revealed the upcoming cast for VH1's "Surreal Life". Phil Hellmuth? Cool. I hate that poker playing pussy, but I admire him at the same time. Miss Cleo? Bwahahahahaha!!! Carrot Top? That fits. Macho Man!!!!!! Some American Idol chick....and Dabney Coleman.....Poor Dabney Coleman. Wasn't he actually famous once?