CAST: In two high-profile casting announcements, Emmy-winner Kim Delaney is heading to FOX’s The O.C. and Teri Polo is checking into NBC’s The West Wing, says the Hollywood Reporter. For at least five episodes, NYPD Blue vet Delaney, 42, will play an ex-flame who reappears in the life of character Sandy Cohen (Peter Gallagher). The O.C. returns on Thursday.