1.Members of Parliament--a person formally elected to the UK national legislative body or other similar legislature elsewhere.
2Speaker of the house--.Speaker runs the proceedings of House debate and voting, appoints committee members, refers bills to committees for research and development, and has an influential voice in all stages of a bill's consideration. Greg Fergus is currently the speaker of the house.
3.Prime minister--the principal minister and head of government in parliamentary systems; chief of the cabinet or ministry. Justin Trudeau is the current prime minister.
4.Cabinet Minister--a member of a governmental cabinet, as in Great Britain
5.Leader of the Official Opposition-- typically the leader of the party possessing the most seats in the House of Commons that is not the governing party or part of the governing coalition. The leader of opposition is now Pierre Poilievre.
6.Shadow Cabinet--It consists of a senior group of opposition spokespeople who, under the leadership of the Leader of the Opposition, form an alternative cabinet to that of the government, and whose members shadow or mirror the positions of each individual member of the Cabinet.