SPOILER ALERT!!!
Only read on if you want to see spoilers. You have been warned.
TV Guide has confirmed that Adrian Pasdar, who has played Nathan Petrelli since the pilot episode, has been let go by NBC.
At the end of Season 3 Nathans throat was slit by Sylar, but Pasdar was able to remain in the show when the villain was forced to take on Nathans image and memories. The last time we saw the 'new' Nathan he had been shot by a hit man and buried. Is that the last we'll see of him or will he have one more appearance?