HBO MAXSERIESMOVIESNEW & LAST CHANCESCHEDULEFREE EPISODESMoreDocumentariesSpecialsSportsPodcastsSIGN INGET HBOMAXHBO MAXSERIESMOVIESNEW & LAST CHANCESCHEDULEFREE EPISODESMoreDocumentariesSpecialsSportsPodcastsSIGN INGET HBOMAXSIGN INStream all of HBO plus more TV, movies, and Max Originals at no additional cost.SIGN INHBO Max True Blood About Season Season 1Season 2Season 3Season 4Season 5Season 6Season 7Marnie Stonebrook Played by Fiona Shaw Marnie is a timid and socially awkward medium who serves as leader of a local Wiccan group. She poses a threat to humans and vampires alike.