Home People Duncan Watson Duncan Watson movies Duncan Watson movies Duncan Watson Movies (4) The Gospel According to Philip K. Dick (2001) As Himself. He was 38 years old Race for Your Life, Charlie Brown (1977) As Charlie Brown. He was 14 years old You're a Good Sport, Charlie Brown (1975) As Charlie Brown / Franklin / Kid (voice). He was 12 years old Be My Valentine, Charlie Brown (1975) As Charlie Brown. He was 12 years old