Emmy winner Powers Boothe died in his sleep of natural causes May 14 in Los Angeles, according to Variety. The Texas native was 68.

Born June 1, 1948, in Snyder, Texas, Mr. Boothe worked at the Oregon Shakespeare Festival following college, and his one Broadway credit was the 1979 production of James McLure's Lone Star & Pvt. Wars, which played 77 performances at the Century Theatre. He also appeared in Richard III at Lincoln Center in 1974.

It was on screens large and small, however, where Mr. Boothe would enjoy his greatest successes, displaying a particular knack for playing villains including Tombstone's Curly Bill Brocious and Deadwood's Cy Tolliver. He also played Senator Roark in both Sin City and its sequel, Sin City: A Dame to Kill For, as well as Philip Marlowe in 11 episodes of the TV series Philip Marlowe, Private Eye.

He won his Emmy for his performance playing cult leader Rev. Jim Jones in the TV film Guyana Tragedy: The Story of Jim Jones. He was also nominated for Cable Ace Awards for his work in the aforementioned Philip Marlowe, Private Eye (1983) and Into the Homeland (1987).

Mr. Boothe's numerous other screen credits include The Avengers, Marvel's Agents of S.H.I.E.L.D., 26 episodes of Nashville, Red Dawn, Nixon, Southern Comfort, The Emerald Forest, 24, Justice League, Sudden Death, and Sin City, among others.

The late actor is survived by his wife and their two children. Donations can be made to the Gary Sinise Foundation.