Actor Earl Hyman, who played Grandpa Huxtable on "The Cosby Show," has died. He was 91. (Source: Raycom Images)(RNN) - Veteran actor Earl Hyman, perhaps best known for his role as Russell Huxtable, the lovable grandfather on 'The Cosby Show," has died. He was 91. Hyman died Friday at the Lillian Booth Adams Home in Englewood, New Jersey, an Actors' Fund representative confirmed. The actor, a North Carolina native, started his career on Broadway in 1943, when he was just a teenager.