John Martin Scurti is an American actor. Scurti attended Fordham University, where he received a bachelor's degree in Fine Arts. One of his early major film roles was The Ref in 1994, in which he appeared with Denis Leary. He maintained a friendship with Leary, and in 2004 Leary asked him to play Lt. Ken Shea in the series Rescue Me. Scurti played Shea for all seven seasons of the show, and also contributed as a writer.