Judy Sgro, PC, MP (born December 16, 1944) is a Canadian politician. A member of the Liberal Party of Canada, she currently represents the electoral district of York West in the Canadian House of Commons.

Sgro was introduced to politics when she was elected to North York City Council in 1987. In 1994 she was acclaimed as a Metro councillor for North York. In 1998 she became a Toronto city councillor in the newly amalgamated city where she served a brief term as vice-chair of the Toronto Police Services Board.

In 1997 Sgro's first attempt at Federal politics came up short when she tried to get elected in the riding of York South—Weston. She lost to John Nunziata who was running as an independent by 4,431 votes. In 1999 she won a by-election in York West to replace Sergio Marchi who had accepted an ambassadorial position. She has since been re-elected by substantial pluralities.

In 2001, she was named chairperson of the Prime Minister's "Caucus Task Force on Urban Issues". In 2003 her group released an interim report recommending increased Federal support to recognize their economic and social value.

Thomas Joseph "Tom" Mulcair (born October 24, 1954) is the Leader of the Official Opposition in Canada, a lawyer, university professor, and politician. A New Democratic Party Member of Parliament for the electoral district of Outremont in Quebec since 2007, he was selected as the leader of the New Democratic Party, thus the Leader of the Official Opposition, in the leadership election on March 24, 2012, with 57.2% of the votes on the fourth and final ballot.

He was the provincial Member of the National Assembly of Quebec for the riding of Chomedey in Laval from 1994 to 2007, holding the seat for the Liberal Party of Quebec. He served as the Minister of Sustainable Development, Environment and Parks from 2003 until 2006, in the Liberal government of Premier Jean Charest. Elected MP for Outremont in a by-election in 2007, he was named Deputy Leader of the New Democratic Party, jointly with Libby Davies, shortly afterwards, and has won re-election twice.

On May 26, 2011, he was named the New Democratic Party's Opposition House Leader. On March 24, 2012, Thomas Mulcair was elected to be the new federal NDP leader, succeeding the late Jack Layton. Prior to entering politics, Mulcair was a senior civil servant in the Quebec provincial government, ran a private law practice, and taught law at the university level.

Marian L. Maloney (August 16, 1924 – May 29, 2010) was a Canadian Senator. Born in Ponteix, Saskatchewan, Maloney is a graduate of Fort William Collegiate Institute and Kings Business College in Thunder Bay, Ontario. From 1968 to 1978, she worked in customer service and administrative positions in both Thunder Bay and Toronto. In 1970, she founded Marian Maloney & Associates, an event management firm. She was married to Anthony William Maloney (1928–2004), a former justice of the Supreme Court of Ontario. They had three sons: James, Partick, and Michael.

She was summoned to the Senate of Canada for the Ontario senatorial division of Surprise Lake on the advice of Prime Minister Jean Chrétien in 1998. A Liberal, she served for 1 year and 2 months until mandatory retirement in 1999.

She died in Toronto on May 29, 2010.