Gerald Tommaso DeLouise (born April 30, 1940), known professionally as Burt Young, is an American actor, author and painter. He played Rocky Balboa's brother-in-law and best friend Paulie Pennino in the Rocky film series. He was nominated for the Academy Award for Best Supporting Actor for his work in Rocky.

He has also appeared in Chinatown (1974), The Gambler (1974), The Killer Elite (1975), Convoy (1978), Uncle Joe Shannon (1978), Once Upon a Time in America (1984), The Pope of Greenwich Village (1984), A Summer to Remember (1985), Back to School (1986), Last Exit to Brooklyn (1990), Mickey Blue Eyes (1999), Transamerica (2005), Win Win (2011), Bottom of the 9th (2019), Beckman (2020) and the documentary film Stallone: Frank, That Is (2021) and had a guest appearance on The Sopranos in 2001.