Kathleen Quinlan has been locked up — in a recurring role on Prison Break. Playing a mysterious woman who has ties to the Company and a surprising connection to Michael, she’ll appear in at least four episodes this season, starting with the Fox drama’s fall finale on Dec. 22. Meanwhile, the series welcomes back a familiar face from season 1 in the Dec. 15 episode: Muse Watson, a.k.a. Charles Westmoreland. No, he’s not quite back from the dead; Michael (Wentworth Miller) interacts with his old prison pal while in a dream-like state during brain surgery. Freaky stuff.