Remarkable people
Biographies of notable people — their path, achievements and key facts.
Michael O'leary
Chief Executive Officer of Ryanair
Michael Kevin O'Learyis an Irish businessman who is the Group CEO of Ryanair. With a net worth of around €848.6 million as of April 2018, he is one of Ireland's wealthiest businessmen. Career O'Leary ...
Hugh O'leary
English accountant
Hugh O'Leary(born 1974) is an English accountant. He is the husband of Liz Truss, who was prime minister of the United Kingdom from September to October 2022. Career O'Leary was born in Allerton, Live...
Peter O'mahony
ish rugby union player
Peter James O'Mahonyis an Irish rugby union player who plays as a flanker for United Rugby Championship club Munster and the Ireland national team. During his career, O'Mahony has captained Presentati...
Martin O'neill
Northern Irish professional football manager
Martin Hugh Michael O'Neillis a Northern Irish professional football manager and former player who played as a midfielder. After a brief early career in the Irish League, O'Neill moved to England wher...
Michelle O'neill
Irish politician
Michelle O'Neillis an Irish politician who served as deputy First Minister of Northern Ireland between 2020 and 2022. She has been serving as Vice President of Sinn Féin since 2018 and is the Member o...
Teresa O'neill
British Conservative Party politician
Teresa Ann Jude O'Neillis a British Conservative Party politician, Leader of the Council in the London Borough of Bexley; Co President, London Councils; and Deputy Chair of the Local Government Associ...
Kevin O'neill
Consultant Neuro-surgeon at Charing Cross Hospital, Imperial College, London and Chairman of BTRC
Kevin O’Neillis Consultant Neuro-surgeon at Charing Cross Hospital, Imperial College, London and Chairman of BTRC. On a personal note, Kevin has impacted on the lives of many people with brain tumour...
Matthew O'riley
professional footballer
Matthew Sean O'Rileyis a professional footballer who plays as a central midfielder for Scottish Premiership club Celtic. Born in England, he plays for the Denmark national team. Club career Fulham O'R...
Colleen O'shaughnessey
American voice actress
Colleen Ann O'Shaughnesseyis an American voice actress. She is best known as the voice of Sora Takenouchi in the Digimon anime, Jazz Fenton in Danny Phantom, Wasp in The Avengers: Earth's Mightiest He...
Aisling (Aisling Bea) O'sullivan
Irish comedian
Aisling Clíodhnadh O'Sullivan, known professionally asAisling Bea, is an Irish comedian, actress and screenwriter. She created, wrote and starred in the comedy series This Way Up on Channel 4. As a st...
Kevin O'sullivan
Irish journalist
Kevin O'Sullivan(born c. 1960) is an Irish journalist. He was the editor of The Irish Times from 2011 to 2017. He was the thirteenth editor of the paper, succeeding Geraldine Kennedy on 23 June 2011, ...
Ronald O'sullivan
English professional snooker player
Ronald Antonio O'Sullivanis an English professional snooker player, and current world number one. Widely recognised as one of the most talented and accomplished players in the sport's history, he has ...
Thaddeus O'sullivan
Irish director, cinematographer, and screenwriter
Thaddeus O'Sullivanis an Irish director, cinematographer, and screenwriter. Early career In the early eighties O'Sullivan was among a group of filmmakers who co-founded 'Spectre' a collective that inc...
Matthew O'toole
Irish Social Democratic and Labour Party (SDLP) politician
Matthew John O'Tooleis an Irish Social Democratic and Labour Party (SDLP) politician, former civil servant, and journalist who has served as a Member of the Legislative Assembly (MLA) for the Belfast ...
Virgin Media O2
Advertising and media
Virgin Media O2 is a British mass media and telecommunications company based in London, England. The company was formed in June 2021 as a 50:50 joint venture between 
David Oakes
English actor
Rowan David Oakesis an English actor. He is best known for his roles in the series The Pillars of the Earth, The Borgias, The White Queen, Victoria, Vikings: Valhalla, and for his discursive Natural H...
Isabel Oakeshott
British political journalist
Isabel Oakeshottis a British political journalist. Oakeshott was the political editor of The Sunday Times and is the co-author, with Michael Ashcroft, of an unauthorised biography of former British pr...
Lauren May Oakley
English professional dancer and choreographer
Lauren May Oakleyis an English professional dancer and choreographer, best known for appearing as a professional on the BBC One television series Strictly Come Dancing. Career Oakley became Juvenile C...
Barack II Obama
American politician
Barack Hussein Obama IIis an American politician who served as the 44th president of the United States from 2009 to 2017. He was the first African-American president of the United States. A member of ...
The Observer
Advertising and media
The Observer is a British newspaper published on Sundays. In the same place on the political spectrum as its sister papers The Guardian and The Guardian Weekly, whos