Milo, Hayden and Zachary Quinto Filming 'Heroes'

Summer break is over for the cast of Heroes. Milo Ventimiglia, Hayden Panettiere and Zachary Quinto were all back on set to begin filming the fourth season of Heroes.

It will be interesting to see if Quinto's upped profile will mean a resurgence in ratings for the troubled show this fall. With the success of Zachary's Star Trek, it seems that the balance of who is the bigger star has shifted a bit on show. Lets hope that egos don't start to collide.