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Conan O'Brien Apr 18, 1963: Emmy Award winning talk show host, Conan O'Brien born in Brookline, Massachusetts |
Margaret O'Brien Jan 15, 1937: Oscar winning actress, Margaret O'Brien born in San Diego, California |
Caroll O'Connor Aug 2, 1924: Emmy and Golden Globe Award winning actor, Caroll O'Connor born in Bronx, New York |
Donald O'Connor Aug 28, 1925: Comedian, actor, singer and dancer, Donald O'Connor born in Chicago, Illinois |
Evelyn Renee O'Connor Feb 15, 1971: Producer, director, actress and Xena's sidekick, Evelyn Renee O'Connor born in Katy, Texas |
Sandra Day O'Connor Mar 26, 1930: Attorney and US Supreme Court Justice, Sandra Day O'Connor born in El Paso, Texas |
Chris O'Donnell Jun 26, 1970: Golden Globe nominated actor Chris O'Donnell born in Winnekta, Illinois |
Rosie O'Donnell Mar 21, 1962: Emmy-award winning television personality and comedian, Roseann Teresa "Rosie" O'Donnell born in Bayside, Queens, New York |
Catherine O'Hara Mar 4, 1954: Emmy nominated actress and comedienne, Catherine O'Hara born in Toronto, Ontario |
Maureen O'Hara Aug 17, 1920: Singer, stage and screen actress, Maureen O'Hara born in Ranelagh, Ireland |
Michael O'Keefe Apr 24, 1955: Zen Buhddist priest, theater, television and Oscar nominated film actor, Michael O'Keefe born in Mount Vernon, New York |
Georgia Totto O'Keeffe |
Tip O'Neill Dec 9, 1912: 55th Speaker of the US House of Representatives, Tip O'Neill born in North Cambridge, Massachusetts |
Bill O'Reilly Sep 10, 1949: Author, columnist and televison journalist, Bill O'Reilly born in New York City |
Annette O'Toole Apr 1, 1952: Academy Award nominee, dancer and actress, Annette O'Toole born in Houston, Texas |
Peter O'Toole Aug 2, 1932: Emmy and Golden Globe Award winning actor, Peter O'Toole born in Leeds, England |
Berry Oakley III Apr 4, 1948: The Allman Brothers Band bass player, Berry Oakley III born in Chicago, Illinois |
Annie Oakley Aug 13, 1860: Rodeo sharpshooter Annie Oakley born Phoebe Ann Mosey in Darke County, Ohio |
Warren Oates Jul 5, 1928: US Marine and actor, Warren Oates born in Muhlenberg County, Kentucky |
Barack Obama Aug 4, 1961: Author, attorney, teacher, Nobel Peace Prize recipient and 44th President of the United States, Barack Hussein Obama II born in Honolulu, Hawaii |
| Claes Oldenburg |
Susan Oliver Feb 13, 1932: Aviatrix, director, actress and Star Trek femme fatale, Susan Oliver born Charlotte Gercke in New York City |
Ken Olsen Feb 20, 1926: US Navy seaman, entrepreneur, and computer pioneer, DEC founder Ken Olsen born in Bridgeport, Connecticut |
Mark Kate Olsen Jun 13, 1986: Actress Mary-Kate Olsen born in Sherman Oaks, California |
Ashley Olson Jun 13, 1986: Actress Ashely Olsen born in Sherman Oaks, California |
Barbara Olson Dec 27, 1955: Author and news commentator, Barbara Olson born in Houston, Texas |
Nancy Olson Jul 14, 1928: Academy Award nominated actress, Nancy Olson born in Milwaukee, Wisconsin |
Yoko Ono Feb 18, 1933: Artist and musician, Yoko Ono born in Tokyo, Japan |
J Robert Oppenheimer Apr 22, 1904: Physicist and director of the Manhattan Project, J. Robert Oppenheimer born in New York City |
Roy Orbison Apr 23, 1936: Legendary Rock & Roll pioneer, singer and songwriter, Roy Kelton Orbison born in Vernon, Texas |
Suze Orman Jun 5, 1951: Author, financial advisor and Daytime Emmy Award winning television personality, Suze Orman born in Chicago, Illinois |
Julia Ormond Jan 4, 1965: Stage and screen actress, Julia Ormond born in Epsom, England |
Hans Christian Orsted Aug 14, 1777: The physicist who discovered electric current can create magnetic fields, Hans Christian Ørsted born in Rudkøbing, Denmark |
George Orwell Jun 25, 1903: Author of Nineteen Eighty Four, George Orwell born Eric Arthur Blair in Morihari, India |
Ozzy Osbourne Dec 3, 1948: Award winning singer John Michael "Ozzy" Osbourne born in Birmingham, England |
Marie Osmond Oct 13, 1959: Singer and actress, Marie Osmond born in Ogden, Utah |
Jesse Owens Sep 12, 1913: Olympic Gold Medalist Jesse Owens born in Lawrence County, Alabama |
Jenna von Oy May 2, 1977: Actress Jenna von Oÿ born in Stamford, Connecticut |
Frank Oz May 25, 1944: Actor, director and puppeteer, Frank Oz born in Hereford, England |