Hayden Panettiere and Milo Ventimiglia sizzles with passion (and lust??) while filming on the set of Heroes season 3. I thought they were uncle and niece in the show? Wazzup with these sexy lovers photos then?? Anyway, according to reports, Heroes season 3 is all set to open with a three-hour episode airing this September 22, 2008 (Monday). The first hour will be a clip show of the past two seasons with the final two hours containing the season 3 premiere and the opening of the third volume, “Villains”. Will Hayden Panettiere be a villain?? After all she’s gone brunette and a wore black leather outfit!