<Li> Mark Buckley (voiced by David Herman)--Buckley was the slacker boyfriend of Luanne . He was killed in a propane explosion by his own negligence while working at Mega-Lo Mart in the second season finale, having dragged a propane tank by the valve instead of its handles resulting in leak . The character did return once (as an angel) on the episode "Wings of the Dope," where Kahn buys Buckley's trampoline for his backyard and Luanne (who has been stressed over beauty school finals) begins seeing Buckley's angel . </Li> <Li> Officer Brown (voiced by Fred Willard)--Officer Brown is a local police officer in Arlen who is not averse to tampering with evidence and taking bribes from illegal food operations, as explained in episodes 20 and 11 (respectively) of season 12 . In the episode "Cops and Roberts," Principal Moss states that "Officer Brown may be a disgraced cop who tampered with evidence...but this here used to be a man". His appearance is modeled after his voice actor . Brown (as well as other Arlen police officers) were seen to be' starstruck' by fictional ex-Dallas Cowboy player Willie Lane (and his 1978 Super Bowl ring) and refused to arrest him for felonies against Hank and Kahn after finding out who he was in the episode "New Cowboy on the Block". </Li> <Li> Jack (voiced by Brian Doyle - Murray)--Jack is Hank's mentally unstable barber . Eventually, his distress affects his ability to style hair, causing Hank great embarrassment . Jack was almost forced out of business when a trendy salon named Hottyz opened across the street, but he was able to secure Luanne and Bill's services after Hottyz fired them when they learned Bill was not the homosexual hairstylist he'd been posing as . </Li> <Li> Eustace Miller (voiced by David Herman)--Eustace is a wimpy, mustachioed patent lawyer and father of Bobby's classmate Randy . </Li>

Who plays jack on king of the hill