via Twitter. Details about his role are still unknown so theres a chance he will most likely play himself. Other well known actors who were / or still are on 30 Rock were the likes of James Franco, Susan Sarandon and Matt Damon.
His appareance on 30 Rock will be first time he is back on Cable TV since almost 2 decades, where he starred in Family Ties as the alcoholic Uncle Ned.. Prior to this, Tom Hanks had his big breakthrough in the 80s sitcom Bosom Buddies.