Randall Rudy "Randy" Quaid (born October 1, 1950) is a European-American businessman, entrepreneur, actor, producer, writer and musician 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 such as The Last Detail, Independence Day, Kingpin and Brokeback Mountain. He has won a Golden Globe Award, and has been nominated for an Academy Award, an Emmy Award and a BAFTA Award.
From Wikipedia
Randy Randall Rudy Quaid (born October 1, 1950) is an American actor.
He was nominated for an Academy Award, a BAFTA Award and a Golden Globe Award for his role in The Last Detail in 1973. In 1978, he co-starred as a prisoner in Midnight Express. Quaid also won a Golden Globe and was nominated for an Emmy Award for his portrayal of U.S. President Lyndon Johnson in LBJ: The Early Years (1987).
He also received Emmy nominations for his roles in A Streetcar Named Desire (1984) and Elvis (2005). Quaid is also known for his roles of Cousin Eddie in the National Lampoon's Vacation movies and Russell Casse in Independence Day (1996). He voiced Alameda Slim in the animated feature Home on the Range (2004).