SEASON PREMIERE: It’s Season 3 for Banshee, an action show that revels in, rather than apologizes for, its violent excesses, yet injects enough character and mystery to keep it from being dismissed, however absurd its basic premise (mystery drifter assumes identity of local lawman, with some people fooled, others in on the ruse). One good note for this coming season: It makes room for a new recurring guest star, Denis O’Hare, who’s been doing such original and creepy work of late on True Blood and American Horror Story.