Here's some scoop on Banshee from this week's (Posted on 9/2/14) Ask Ausiello column.
Question: Who is Denis O’Hare playing in Banshee? —Hayley
Ausiello: The American Horror Story vet plays Robert Philips, an FBI agent who is sent to investigate Agent Racine’s disappearance. As of now he’s booked for one episode, but I have to imagine there will be more. It’s Denis O’Hare, for chrissakes!
Link to the full article:Ask Ausiello: Spoilers on Vampire Diaries, Good Wife, S.H.I.E.L.D., Blacklist, SVU, Big Bang and More | TVLine
