Randy Quaid

Randall Rudy "Randy" Quaid (born October 1, 1950) is a retired American actor perhaps best known for his role as Cousin Eddie in the National Lampoon's Vacation movies, as well as his numerous supporting roles in films, including his Oscar nominated performance in The Last Detail, Independence Day, Kingpin and Brokeback Mountain. He is the older brother of Dennis Quaid. His only theatrical and credited Disney role (yet first in general) so far is Alameda Slim in Home on the Range. His other Disney role is Rockin' Rory in Stanley's Dinosaur Round-Up, which was released directly to video, and in which he wasn't credited.