Elroy "Lucky '' Kleinschmidt (voiced by Tom Petty) -- Lucky is Luanne 's itinerant, but generally benign redneck husband, and is the father of Luanne 's child. It 's often hard for Lucky to hold down a job (he has no credit or Social Security number). He lives on the remainder of the $53,000 "settlement monies '' he received after "slipping on pee - pee at the Costco '' having had a portion of his spine fused. He was nicknamed "Lucky '' after the settlement windfall. After he spent a majority of his money customizing his truck, his finances dwindled down to nine thousand dollars but regained another $53,000 when an ambulance chasing lawyer paid off Lucky to avoid a lawsuit. Peggy tried very hard to break him and Luanne apart, but after Luanne 's pregnancy was revealed, she and Hank reconciled the two, giving them a shotgun wedding at Lucky 's request. He is also one of the guitarists for John Redcorn 's band "Big Mountain Fudgecake ''. Although dimwitted in some aspects, Lucky has learned some facets such as basic math through life experience as opposed to formal education, and was astute enough to deduce that his father - in - law spent time in jail whereas Luanne believed the story that he works on an oil rig. He yearned to receive his GED but only to prove he was good enough to marry Luanne.
who plays lucky on king of the hill
Tom Petty