Adding another layer of meta to a show that probably didn’t need it, Seth Rogen has joined the comeback of The Comeback, playing both himself and a fictionalized version of already-fictional writer Paulie G., as first reported by Buzzfeed. That’s because the second, unexpected season of the series contains an HBO show within the HBO show—a drama called Seeing Red, which first-season nemesis Paulie G., played by Lance Barber, writes about his experiences as a heroin-addicted TV writer who’s tormented by Valerie Cherish, played by Lisa Kudrow. Cherish then joins the cast of that show-within-the-show as an exaggerated version of herself named “Mallory Church,” lured to participate in her own excoriation by the very HBO promise of acting opposite a bigger star than her—in this case, Seth Rogen.