Neil Gordon Kinnock, Baron Kinnock, PC (born 28 March 1942) is a British politician. He was a Member of Parliament (MP) from 1970 to 1995, and was Leader of the Opposition and Labour Party leader from 1983 to 1992, when he resigned after the 1992 general election defeat. He subsequently served as a UK Commissioner of the European Commission from 1995 until 2004, and is now Chair of the British Council. He is also President of Cardiff University.

Dr James Gordon Brown (born 20 February 1951) is the Prime Minister of the United Kingdom, the First Lord of the Treasury, the Minister for the Civil Service, the current Member of Parliament for Kirkcaldy and Cowdenbeath and the Leader of the Labour Party since 27 June 2007. Before this, he served as Chancellor of the Exchequer under Tony Blair from 1997 to 2007.

John Smith QC (13 September 1938 - 12 May 1994) was a Scottish politician who served as leader of the Labour Party from July 1992 until his sudden death from a heart attack on 12 May 1994.

Michael Mackintosh Foot (born 23 July 1913) is an English politician and writer. He was leader of the Labour Party from 1980 to 1983.

Hugh Todd Naylor Gaitskell (9 April 1906 - 18 January 1963) was a British politician, leader of the Labour Party from 1955 until his death in 1963.

Leonard James Callaghan, Baron Callaghan of Cardiff, KG, PC (27 March, 1912 – 26 March, 2005), was Labour Prime Minister of the United Kingdom from 1976 to 1979. Known as Jim for short (and nicknamed 'Sunny Jim' or 'Big Jim'), Callaghan is the only person to have served in the four Great Offices of State: Prime Minister, Chancellor of the Exchequer, Home Secretary and Foreign Secretary.

James Harold Wilson, Baron Wilson of Rievaulx, KG, OBE, FRS, PC (11 March 1916 - 24 May 1995) was one of the most prominent British politicians of the 20th century. He emerged as Prime Minister after more General Elections than any other 20th century Prime Minister of the United Kingdom, with majorities of 4 in 1964, 98 in 1966 and 5 in October 1974, and with enough seats to form a minority government with Ulster Unionist Party support in February 1974.

Ramsay MacDonald , the first Labour PM, came from a working class family and grew up in Lossiemouth. He worked as a teacher at the local board school he attended, and at 18 moved to Bristol as a clergymans assistant, where he joined the Social Democratic Federation. MacDonald was employed as a Liberal candidate's assistant in London for three years, and joined the Independent Labour Party in 1893.

Clement Richard Attlee, 1st Earl Attlee, KG, OM, CH, PC (3 January 1883 - 8 October 1967) was Prime Minister of the United Kingdom of Great Britain and Northern Ireland from 1945 to 1951. The Labour Party under Attlee won a landslide election victory over Winston Churchill immediately after Churchill had led Britain through World War II. He was the first Labour Prime Minister to serve a full Parliamentary term and the first to have a majority in Parliament.

Arthur Henderson (September 13 1863 - October 20 1935) was a British union leader, politician, disarmament advocate, and the 1934 Nobel Peace Prize Laureate.

George Lansbury (21 February 1859 - 7 May 1940) was a British politician, socialist, Christian pacifist and newspaper editor. He was a Member of Parliament from 1910 to 1912 and from 1922 to 1940, and leader of the Labour Party from 1932 to 1935.

Margaret Mary Beckett is a British Labour politician and Member of Parliament (MP) for Derby South. She served in government under Tony Blair, becoming the first woman to hold the office of Foreign Secretary (the second of only three women to have held one of the Great Offices of State). She was Deputy Leader of the Labour Party from 1992 to 1994 and was briefly its Leader in 1994.

James Keir Hardie (15 August 1856 - 26 September 1915) was a Scottish socialist and labour leader, and one of the first two Labour Party Members of Parliament (MPs) elected to the UK Parliament after the establishment of the Labour Party.

William Adamson (2 April 1863 - 23 February 1936) was born in Dunfermline, Scotland and worked as a miner in Fife where he became involved with the National Union of Mineworkers. Active with the new Labour Party he was first elected to Parliament for West Fife in the December 1910 general election and became leader of the party in 1917, a position he held until 1921.

George Nicoll Barnes CH PC (January 2, 1859-April 21, 1940) was a Scottish politician and a leader of the Labour Party. Barnes was born in Lochee, Dundee. He was apprenticed as an engineer and became General Secretary of the Amalgamated Society of Engineers. At the 1895 general election he stood unsuccessfully for the Independent Labour Party in Rochdale. He was elected as MP for Glasgow Blackfriars and Hutchesontown at the 1906 general election for the Labour Party.

John Robert Clynes (27 March 1869 - 23 October 1949) was a British trade unionist and Labour Party politician. He was a Member of Parliament for 35 years, and led the party in its breaktrough at the 1922 general election. The son of the labourer, Patrick Clynes, he was born in Oldham on 27th March 1869 and began work in a local cotton mill when he was 10 years old.

Anthony Charles Lynton Blair (born 6 May 1953) is a British politician who served as the Prime Minister of the United Kingdom from 2 May 1997 to 27 June 2007, the Leader of the Labour Party from 1994 to 2007 and the Member of Parliament for Sedgefield from 1983 to 2007. On the day he stood down as Prime Minister, he was appointed official Envoy of the Quartet on the Middle East on behalf of the United Nations, the European Union, the United States and Russia.