Diahann Carroll is set to make a guest appearance in the upcoming season of ABC's red-hot medical drama, "Grey's" creator/executive producer Rhimes told reporters Thursday during a visit to the show's set at Prospect Studios in the Los Feliz area of Los Angeles, organized as part of the Television Critics Assn.'s summer press tour. The same TCA field trip included a visit to the set of FX's "The Shield," where creator/executive producer Shawn Ryan had some guest-star news of his own. The Last Stand, will be a guest star in the final three episodes of the Emmy-winning police drama series.

Subscribe to the Hollywood Reporter and see the entertainment industry from its best angle: the inside looking out. Complete access to real-time news and exclusive analysis that goes behind the scenes from film to television, home video to digital media.

   Subscribe now.