Grant Goodeve (born July 6, 1952) is an American actor and television host. He is best known for playing the role of David Bradford, the oldest son, on Eight Is Enough, from 1977 to 1981. He sang the theme song for the show as well. More recent work includes Home & Garden Television and voice roles, such as the Engineer in the multiplayer video game Team Fortress 2 and Wolf O'Donnell in Star Fox: Assault.