Vanessa Williams will join the cast for season 3. Find out what dastardly role will she fill. The Librarians have a new adversary. Ugly Betty's Vanessa Williams will become the face of evil once more as Flynn Carsen (Noah Wyle) and his fellow Librarians return for season 3.

From digging benieth the 'Stones' to 'Happily Ever Afters,' get a sneak peek at season 2

Jake Stone will go up against a familiar looking face in season 2 Double the Kane, double the trouble for The Librarians. 'The Librarians' Season 2: Three Guest Stars Announced; Check Out Their BTS PHOTOS From Set! The first promo for The Librarians' hit the air on Sunday night (see video below), and a particularly amusing fight scene has fans buzzing.

From 'Battlestar Galactica' alum to extremely talented dancers, 'The Librarians' is building up an impressive roster for its sophomore run