John P. Navin Jr. is an American film and television actor from Philadelphia. He is well known for his roles in the 1981 drama film Taps and the 1983 movie Losin' It, both of which co-starred Tom Cruise. He also starred in National Lampoon's Vacation as Cousin Dale. Navin starred in the short-lived 1983 television series Jennifer Slept Here with Ann Jillian. Navin also appeared in the pilot episode of the TV series Cheers, which starred his Losin' It costar Shelley Long. He made guest appearances on the television shows The Facts of Life, Gimme a Break!, Silver Spoons, Cheers, and Double Trouble. He was the first patron on Cheers, appearing as a teenager who presents a fake I.D. to try to get a drink. 

July 24th, 1968 in United States of America (Age 56)