Fox is now confirming that Peter MacNicol ( Ally McBeal) is joining the cast of 24 as a series regular. He'll play a high-ranking government official who becomes embroiled in Jack Bauer's latest day from hell. You're probably wondering what this means for MacNicol's full-time gig on CBS' Numbers. Believe it or not, I'm told he will do both shows simultaneously. Sounds like someone's gonna be busy!

In other 24 casting news, the show is looking at actresses in their early 30s to play Chloe's new boss and Bill Buchanan's right hand lady at CTU. The character is described as smart, attractive and very good at what she does. In other words, Chloe's gonna have none of her.