Because Zachary Quinto is still worth watching, and because they hired John Glover to play his real (maybe) father. (Yes, he's not a Petrelli, he's a Luthor, and Lionel is here to take him back to Smallville.)

I KNOW. Man, Clark so does not need that. But that was also totally my first thought, because apparently, Heroes just can't let go of ripping off Smallville.