Thomas John Guiry (born October 12, 1981) is an American actor. He is best known for his lead performance as Scott "Scotty" Smalls in the coming-of-age film The Sandlot, which was filmed when he was 12, and his role in NBC crime drama The Black Donnellys. Guiry has appeared in numerous high-profile films and television series, including U-571, Black Hawk Down, Mystic River, Black Irish, and The Revenant. (Via Wikipedia)