Blackjack Mulligan, American professional wrestler (b. 1942)
Robert Deroy Windham (November 25, 1942 – April 7, 2016), better known by his ring name Blackjack Mulligan, was an American professional wrestler, author, and American football player. He was the father of wrestlers Barry and Kendall Windham, father-in-law of Mike Rotunda, and the maternal grandfather of Bray Wyatt and Bo Dallas.