"Yes, I'm done," the 65-year-old actress told the audience at Sunday's PaleyFest in Hollywood. "We've had a great run here. I have absolutely loved doing these four characters that I've had the opportunity to play. In all the madness, I've loved the writers, my actors, Ryan and the whole, I mean, insanity of it, shooting here, shooting in New Orleans, the stories, everything."
Lange, who has been with the FX series, by "Glee" creator Ryan Murphy, since its inception in 2011, added, "Forty years of acting and it's never going to get better than this. Yes, I'm done. I loved this season. It was my absolute favorite."