Another key piece of the upcoming second season of FX’s hit drama series American Horror Story has fallen into place. Zachary Quinto , who did a scene-stealing four-episode arc on the first season of the Ryan Murphy/Brad Falchuk drama as the Harmon house’s doomed former co-owner Chad Warwick , will be back as a series regular in Season 2, joining Jessica Lange . Like Lange, he will play a brand new character next season, which is set at an East Coast institution. What’s more, I have learned that Quinto will play one of two male leads and the nemesis to Lange’s character, which will be at the center of the Season 2 storyline. The part is sure to draw parallels to Quinto’s breakout role as uber-villain Syler on Heroes. While Lange had been expected to return — she confirmed ongoing negotiations at the Golden Globes and the SAG Awards, where she won for her performance on the show, Quinto’s return had been kept under wraps until now. Quinto and Murphy are friends; that’s how Quinto’s o...