Anthony M. LaPaglia is the actor who plays Jack Malone. He is married and the father of a girl, Bridget born in 2003. His brother, Jonathan is also an actor and played in NCIS.
Anthony is the godfather of Poppy Montgomery and Adam Kaufman son, Jackson.
Like Vanessa Marano and Laura Marano who plays Hannah and Kate, Jack's daughter, he is from Italian descent.