Tom Hanks announced on Twitter that he'll be making an appearance on 30 Rock this season. It hasn't been revealed what kind of character he'll play, but he has been known to star as himself, as seen on Life with Bonnie, The Naked Truth, and in the occasional Jimmy Kimmel sketch. Of course, there is a chance that he'll appear as a new member of the NBC Page Program who rides around on a scooter (so those skills that he learned while preparing for Larry Crowne don't go to waste). Will he interact with Liz Lemon? Of course he will! Lemon has fallen in love with one of her cousins -- she's definitely bound to rub elbows with a guy on on a motorized bicycle.
Source: Deadline