According to EW.com Steve Buscemi is going to return to 30 Rock!

Steve Buscemi is back on the case: The Boardwalk Empire actor will appear in the Feb. 16 episode of 30 Rock, series creator/star Tina Fey tells EW. Buscemi — who has guest-starred on the NBC comedy multiple times and directed an episode — will not only reprise his role as private detective Len Wosniak, he’ll also helm this installment. Notes Fey of the plot: “After Jack (Alec Baldwin) gets mugged, he tries to reach out to his connections on the police force, [saying,] ‘I know Commissioner Ray Kelly. We have a column in IRISH ARGUMENTS WEEKLY, the only all-caps magazine. But he hasn’t gotten back to me on this.’ Jack wants Len to help him form a private police force where the salary starts at $5 million, so the police have the same interest in protecting the rich.”

Other guest stars on 30 Rock‘s sixth season include Mary Steenburgen, Emma Stone, Andy Samberg, Will Arnett, and Kristen Schaal.