LOS ANGELES (AP) — Tough-guy actor George Kennedy, who won an Oscar for his portrayal of a savage chain-gang convict in the 1960s classic "Cool Hand Luke," has died in Idaho.

His grandson says Kennedy died on Sunday of old age in Boise, where he moved with his late wife in 2002. He was 91. After "Cool Hand Luke," Kennedy carved out a niche as one of Hollywood's most recognizable supporting actors.