Keith Daniel O'Neil (born August 26, 1980 in Rochester, Michigan) is a former American football linebacker of the National Football League. He was signed by the Dallas Cowboys as an undrafted free agent in 2003. He played college football at Northern Arizona.

O'Neil was also a member of the Indianapolis Colts and New York Giants, and earned a Super Bowl ring with the Colts in Super Bowl XLI.

O'Neil attended Northern Arizona University. He was a four-year letterman and three-year starter who had 225 career stops, 20 sacks, 49 tackles for losses and three interceptions. He was first-team All-Big Sky choice as a junior and senior. O'Neil also earned All-American honors.

O'Neil is from Amherst, New York and attended Sweet Home High School where he was a standout linebacker for the Sweet Home Panthers football team.

O'Neil is the son of former NFL linebacker Ed O'Neil.

Keith Theodore Olbermann ( /ˈoʊlbərmən/; born January 27, 1959) is an American political commentator and writer. Most recently, he was the chief news officer of the Current TV network and the host of the Current TV weeknight political commentary program, Countdown with Keith Olbermann, until March 30, 2012, a program he hosted with the same title and a similar format on MSNBC from March 2003 to January 2011.

During his time at MSNBC, Olbermann established a niche in cable news commentary, gaining note for his pointed criticism of mainly right-leaning politicians and public figures such as Fox News Channel commentator Bill O'Reilly,President George W. Bush and 2008 Republican presidential nominee, John McCain. Though he has been described as a "liberal", he has resisted being labelled politically, stating "I'm not a liberal. I'm an American".

Olbermann spent the first twenty years of his career in sports journalism. He was a sports correspondent for CNN and for local TV and radio stations in the 1980s, winning the Best Sportscaster award from the California Associated Press three times. He co-hosted ESPN's SportsCenter from 1992 to 1997. From 1998 to 2001, he was a producer and anchor for Fox Sports Net and a host of Major League Baseball on Fox.

John Jordan "Buck" O'Neil (November 13, 1911 – October 6, 2006) was a first baseman and manager in the Negro American League, mostly with the Kansas City Monarchs. After his playing days, he worked as a scout, and became the first African American coach in Major League Baseball. In his later years he became a popular and renowned speaker and interview subject, helping to renew widespread interest in the Negro leagues, and played a major role in establishing the Negro Leagues Baseball Museum in Kansas City, Missouri.

Born in rural Carrabelle, Florida, O'Neil was initially denied the opportunity to attend high school due to racial segregation; at the time, Florida had only four high schools specifically for African Americans. However, after working a summer in a celery field with his father, O'Neil left home to live with relatives and attend Edward Waters College in Jacksonville, where he completed high school and two years of college courses. He left Florida in 1934 for several years of semi-professional "barnstorming" experiences (playing interracial exhibition games),. The effort paid off, and in 1937, O'Neil signed with the Memphis Red Sox for their first year of play in the newly-formed Negro American League. His contract was sold to the Monarchs the following year.

Steve-O (born Stephen Gilchrist Glover; June 13, 1974) is an English-born American stunt performer and television personality. His entertainment career is mostly centered around his performance stunts on the American TV series, Jackass, and accompanying movies.

Steve-O was born in London, England. His mother, Donna Gay (née Wauthier), was Canadian, and his father, Richard Glover, was American. His paternal grandfather was English and his maternal step-grandfather was voice-over announcer Wayne Howell. His family was based in England for many years due to his father's presidency of the South American division of Pepsi-Cola. During his childhood he lived in a number of countries, including Canada, Brazil, Venezuela, and Uganda, where he spent two years before returning to the United States.

His first hometown in the United States was Darien, Connecticut, at the age of four. He moved to Miami two years later. When he was nine his family returned to London where Steve-O attended the American School in London in St. John's Wood for four years of school. As a child, he was an avid Mötley Crüe fan. In 1987, Motley was playing at Maple Leaf Gardens in Toronto, Canada where his family was living in at the time. He phoned every hotel within and outside the vicinity until he found the name that the band usually checked in under, manager Doc McGhee. He did not speak to Doc, but rather his brother Scott, but McGhee was so impressed with the resolve of Steve O to meet Motley that he brought him out for their show, let him meet them, and hang with them backstage, as told in Tommy Lee's autobiography.

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Billy O'Neil (played by Phil Barantini) was a fictional footballer on Sky One's television drama Dream Team. He was a striker for Harchester United.

O'Neill signed for Harchester as a free agent after being released by hometown club, Liverpool. He became the bearer of practical jokes during his arrival at the club mainly from team mate Sean Hocknell. However, Billy soon fitted in at Harchester and made a significant contribution to their Premier League survival in 2000 as it was Billy who won the last minute penalty against Tottenham after been brought down by goalkeeper Ian Walker.

Near the end of the 1999–00 season, Billy was torn between renewing his contract with Harchester or taking an offer from West Ham United. He had originally planned on staying with Harchester, but West Ham offered a better contract to which O'Neil decided that he could not turn down.