Actor Aidan Quinn arrives at the premiere of "Unknown" in Los Angeles, California. He is a proud Irish-American.
Mercedes-Benz Fashion Week Fall 2011 - Official Coverage - People and Atmosphere Day 4
Singer Fergie is seen here at the Mercedes-Benz Fashion Week at the Lincoln Center in New York City. She is said to be of Irish descent.
Actory George Clooney is said to be Irish-American.
Gwen Stefani is pictured backstage at the L.A.M.B. Fall 2011 fashion show during Mercedes-Benz Fashion Week at The Theatre at Lincoln Center on February 17, 2011 in New York City. She is said to be part Irish.
Actor John Cusack is another proud Irish-American.
US actor John Travolta holds the award f
Despite having a very Italian name, John Travolta once said his household was mainly Irish in culture.
Actress Kate Mulgrew is said to be a proud Irish-American.
Kathy Griffin is see here arriving at The Weinstein Company and Relativity Media's 2011 Golden Globe Awards Party. Her parents are said to be first-generation Irish-Americans.
Actress Lindsay Lohan is said to be of both Irish and Italian descent.
Mixed primarily with English, Native American and Jewish descent, Mandy Moore is also known to be mixed with a little Irish.
US actor Matt Dillon was raised in an Irish Catholic home.
"Edge Of Darkness" - Paris Premiere
Mel Gibson is pictured here at the Edge of Darkness movie premiere. His mother was born in Ireland.
Reba performs onstage during the 2010 American Country Awards held at the MGM Grand Garden Arena in Las Vegas, Nevada. Reba is a proud Irish-American.
County singer Tim McGraw is Irish-American.
Vanessa Hudges is known for her role in High School Musical. Although she is mixed with many different backgrounds, she embraces her Irish heritage.
Tom Brady plays for the New England Patriots. He was raised in an Irish Catholic home.
Vin Scully at the Hollywood Radio & Television Society Newsmaker Luncheon. Scully is an American Sportscaster of Irish descent.