Rex Buckland is a fictional character masquerading as the boss of Prue Halliwell and a Warlock teamed with nasty-girl warlock Hannah Webster on a mission to destroy her and her sisters that appeared as the first regular repeating adversaries of the Charmed Ones during the first half-season of the eight-year series' run on The WB television series,Charmed. Rex was played by actor Neil Roberts in the fall season in 1998 through the January 13, 1999, airing ofWicca Envy, where the two almost succeed in framing Prue and getting the Charmed ones to give up their powers.