Obama, 44th President of the United States; former US Senator from Illinois (2004–2008) (born in Hawaii) Michelle Obama, First Lady of the United States, wife of Barack Obama Dean O'Banion, organized crime figure Ken Oberkfell, MLB infielder 1977–92 Arch Oboler, playwright, radio personality, film director Ed O'Bradovich, defensive end for 1963 NFL champion Chicago Bears Hugh O'Brian, actor, The Life and Legend of Wyatt Earp, Ten Little Indians, Come Fly With Me, The Shootist Chris O'Brien, pro football pioneer, owner of Chicago Cardinals George M. O'Brien, U.S. Representative 1973–86 Thomas J. O'Brien, 24-year U.S. Representative Jack O'Callahan, hockey player for Chicago Blackhawks and in 1980 "Miracle on Ice" game Bob Ociepka, basketball coach Mike O'Connell, NHL player and executive Tommy O'Connell, quarterback, Cleveland Browns, 1957 NFL title game Colleen O'Connor, ice dancer, 3-time U.S. champion, Olympic bronze Donald O'Connor, dancer, singer, actor, Singin' in the Rain, There's No Business Like Show Business, Francis, Ragtime Kevin J. O'Connor, actor, Color of Night, The Mummy, There Will Be Blood Leslie O'Connor, baseball executive Tim O'Connor, actor, Peyton Place, Buck Rogers in the 25th Century Tommy O'Connor, gangster (born in Ireland) Anita O'Day, singer Hank O'Day, Baseball Hall of Fame umpire Rasmea Odeh, convicted of immigration fraud, for concealing her arrest, conviction, and imprisonment for fatal terrorist bombing Bill Odenkirk, comedy writer, actor, producer, Mr. Show, The Simpsons Bob Odenkirk, actor, comedian, writer, director, Better Call Saul, Breaking Bad, Nebraska, Mr. Show, Fargo Chris O'Donnell, actor, NCIS: Los Angeles, Scent of a Woman, Batman Forever, Batman & Robin Jake Odorizzi, pitcher for Minnesota Twins Matt O'Dwyer, NFL offensive lineman 1995–2004 Joe Oeschger, MLB pitcher 1915–24 Bob O'Farrell, catcher for three MLB teams, 1926 MVP and World Series champion, manager Nick Offerman, actor, comedian, Parks and Recreation, The Lego Movie, We're the Millers, Fargo William Butler Ogden, politician (Democrat), businessman, first Mayor of Chicago (born in New York) Joseph Ogle, Revolutionary War soldier, established state's first Methodist church (born in Maryland) Richard James Oglesby, politician (Republican), Civil War officer, U.S. Senator, 3-time Governor of Illinois (born in Kentucky) Richard B. Ogilvie, Governor of Illinois 1969–73 Gail O'Grady, actress, American Dreams, NYPD Blue, Hellcats David Ogrin, pro golfer Barratt O'Hara, lieutenant governor, U.S. Representative 1949–69 Janice O'Hara, pro baseball player Edward J. O'Hare, lawyer, associate of Al Capone, father of war hero Butch O'Hare (for whom O'Hare Airport was named) Michael O'Hare, actor, best known