George Timothy Clooney (born May 6, 1961) is an American actor, film director, producer, and screenwriter. He has received three Golden Globe Awards for his work as an actor and two Academy Awards, one for acting and the other for producing. Clooney is also noted for his political activism and has served as one of the United Nations Messengers of Peace since January 31, 2008.

Clooney made his acting debut on television in 1978, and later gained wide recognition in his role as Dr. Douglas "Doug" Ross on the long-running medical drama ER from 1994 to 1999, for which he received two Emmy Award nominations. While working on ER, he began attracting a variety of leading roles in films, including Batman & Robin (1997) and Out of Sight (1998), in which he first worked with long-time collaborator Steven Soderbergh. In 1999 Clooney took the lead role in Three Kings, a well-received war satire set during the Gulf War. In 2001, Clooney's fame widened with the release of his biggest commercial success, Ocean's Eleven, the first of a profitable film trilogy, a remake of the 1960 film which starred members of the Rat Pack with Frank Sinatra as Danny Ocean. He made his directorial debut a year later with the biographical thriller Confessions of a Dangerous Mind, and has since directed Good Night, and Good Luck (2005), Leatherheads (2008), and The Ides of March (2011). He won an Academy Award for Best Supporting Actor for the Middle East thriller Syriana (2005), and subsequently earned Best Actor nominations for Michael Clayton (2007), Up in the Air (2009) and The Descendants (2011). In 2013, he received the Academy Award for Best Picture for producing the film Argo, alongside Ben Affleck and Grant Heslov. He is the only person ever to be nominated for Academy Awards in six categories.

In 2005, TV Guide ranked Clooney #1 on its "50 Sexiest Stars of All Time" list. In 2009, he was included in Time's annual TIME 100 as one of the "Most Influential People in the World."

Clooney's humanitarian work includes his advocacy of finding a resolution for the Darfur conflict, raising funds for the 2010 Haiti earthquake, 2004 Tsunami, and 9/11 victims, and creating documentaries such as Sand and Sorrow to raise awareness about international crises. He is also a member of the Council on Foreign Relations.

In 2013, Clooney won the Golden Globe for Best Motion Picture - Drama, the BAFTA Award for Best Picture and the Academy Award for Best Picture for producing Argo. He is the only person in Academy Award history to be nominated for Oscars in six different categories: Best Picture, Best Actor, Best Supporting Actor, Best Director, Best Original Screenplay and Best Adapted Screenplay.

Clooney co-starred with Sandra Bullock in Gravity (2013), a science fiction film directed by Alfonso Cuarón. He co-wrote, directed and starred in The Monuments Men, an adaption of The Monuments Men: Allied Heroes, Nazi Thieves and the Greatest Treasure Hunt in History by Robert M. Edsel. Clooney also produced August: Osage County (2013), an adaptation of the play of the same name. The film stars Meryl Streep and Julia Roberts.