John Aprea (born March 4, 1941) is an American actor, known for his role as the young Sal Tessio in The Godfather: Part II (1974) and on television as Lucas Castigliano on the soap opera Another World, from 1989 to 1992. In 2006, he appeared in the soap opera The Heiress. He also played the father of John Stamos' character, Jesse Katsopolis, on Full House for two seasons. He also costarred with Lee Horsley in Matt Houston during the 1980s.Aprea was born and grew up in Englewood, New Jersey.