Oh, I did see the Driveshaft poster, I was writing down the shows I got whilst reading it, but I guess I forgot to put down Lost.

But yeah, Hiro shows up near the climax when Harry gets ready to fight. I think there were a couple of other people being referenced also in that same page, because in the same panel as him is some blond guy looking at his watch framed in such a way as if we should recognize him. And the panel above is some balding guy with sunglasses who says "Mega."