Dennis Farina visits the Tribeca Film Festival 2011 portrait studio on April 23, 2011 in New York City.

Actor Dennis Farina has died, according to the Associated Press. Farina, who served 18 years in the Chicago Police Department before becoming an actor, was best known for his role on Law & Order. Most recently, he played Nick’s father Walt on two episodes of New Girl.

According to IMDb, Farina was currently filming a movie called Lucky Stiff about a bachelor who must go to Monte Carlo to claim an inheritance from a rich uncle. The film stars Seinfeld‘s Jason Alexander. He is also in Authors Anonymous, currently in post-production.

Though his cause of death is unknown at this time, Farina’s publicist confirmed the actor’s passing, saying:

We are deeply saddened by the loss of a great actor and a wonderful man. Dennis Farina was always warm-hearted and professional, with a great sense of humor and passion for his profession. He will be greatly missed by his family, friends, and colleagues. We hope that he finds a new life where great roles are plentiful and the Cubs are always winning the pennant. We ask that the press refrain from contacting his family at this time so that they can mourn their loss together.