Home People John P. Navin, Jr. John P. Navin, Jr. movies John P. Navin, Jr. movies John P. Navin, Jr. Movies (5) Explorers (1985) As Couple at Drive-In. He was 16 years old The Toughest Man in the World (1984) As Billy. He was 16 years old National Lampoon's Vacation (1983) As Cousin Dale. He was 15 years old Losin' It (1983) As Wendell. He was 14 years old Taps (1981) As Derek Mellott. He was 13 years old
