Get Wrapped Up in the Latest American Horror Story: Asylum Teaser; Meet Ten of the New Characters

Dr. Arden (James Cromwell): He may appear harmless, but the not-so-good doctor is behind one of the season's newest frights: the Raspers. The mutated humans lurk in the forest outside of the institution and are a product of Arden's diabolical experiments on Briarcliff's inmates.
Also, Arden may or may not be a Nazi.

Sister Eunice (Lily Rabe): Rabe ramps up her relationship to Lange as second-in-command Sister Eunice. Eunice may seem to be a bit dense, but Rabe promises there's more to her.

Monsignor Timothy O'Hara (Joseph Fiennes): Sister Jude's superior finds himself on the receiving end of the nun's affections (and fantasies), but he's not entirely innocent. Not unlike the red lingerie under Jude's habit, there are dark intentions under Msgr. O'Hara's grace and piety.

Leo (Adam Levine): For his TV acting debut, the Maroon 5 singer will play one half of a newlywed couple visiting modern-day Briarcliff. If you thought Rubber Man was a formidable foe, wait until you meet the Big Bad whose attention Leo draws.