His son, Todd, also plays poker professionally. Todd has won a bracelet in the $2,500 Omaha Hi-Lo at the 2005 World Series of Poker, making Doyle and Todd the first father–son combination to win World Series bracelets. His daughter Pamela played in the 2007 World Series of Poker and 2009 World Series of Poker Main Events, outlasting both Doyle and Todd both times.