Janel Moloney by Jemal Countess/ WireImage.com Janel Moloney by Jemal Countess/ WireImage.com

Oh, Donna Moss, how far have you fallen?

Janel Moloney, best known to TV fans from her wholesome run on The West Wing - but who also showed us a certain somethin'-somethin' on Showtime's saucy Brotherhood - has landed a plum gig on Law & Order: Criminal Intent, TVGuide.com has learned.

When the USA Network series launches its eighth season on Nov. 6, Moloney will guest-star as the manipulative wife of a preacher man (Leland Orser, aka ER's Dr. Dubenko), who is a "person of interest" in the death of a high-profile doctor.

For its new season, lest you need reminding, CI has Jeff Goldblum filling the void left by Chris Noth's departure. - Matt Mitovich

Crave scoop? E-mail Matt and Mickey at mega_scoop@tvguide.com.