Callie Thorn of "Rescue Me" fame (Sheila) is joining the FOX drama "Prison Break" in early November.
The actress whose previous credits include ER, The Wire and Law & Order: CI/SVU, will play Pam, the former wife of Michael Scoffield's (Wenthworth Miller) nemesis Mahone (William Fichtner). Michael meets up with Pam in an attempt to uncover some dirt on the FBI agent.
Eddie Cibrian (Third Watch, Invasion) joins the other FOX Monday night drama "Vanished" next week in the episode entitled "Black Box". He will play FBI agent Daniel Lucas.
Both dramas will air through October 3 and then take three weeks off for baseball play-offs coverage on FOX.