We have to define Head of Government for this.
Technically there are two definitions for democratic monarchies like the UK
So The Prime minister is the head of government.
But so is the Queen.
The UK parliament headed by the Prime Minister
The real head of the Canadian government is Queen Elizabeth II
Gordon Brown is the Prime Minister.
The Prime Minister, currently David Cameron.
The leader of the country, is Her Majesty The Queen. The head of the UK government is the Prime Minister.
The Head of Government in the UK is called the Prime Minister. In Scotland, Wales and Northern Ireland, which have some autonomy under devolved Assemblies, the Heads of Government are called First Ministers.
In the UK, the Queen is the head of State but the Prime Minister is the head of the Government.
The Head of State is Queen Elizabeth II and the Head of Government is the Prime Minister James Gordon Brown. The Queen is head of state of the United Kingdom and the head of government in the UK is Gordon Brown. There is no-one in charge of Great Britain because it is not a country, only part of the UK.
The United Kingdom's government is a Parliamentary Democracy with a federal system. The Prime Minister is the head of government and the Monarch is the Head of State. The Monarch is honorary and is like a symbol or icon and has little to no power or say in the government.
Germany, Russia, and the UK have different forms of government. Germany is a federal parliamentary republic with a chancellor as the head of government. Russia is a federal semi-presidential republic with a president as the head of state and a prime minister as the head of government. The UK is a constitutional monarchy with a parliamentary system, where the king or queen is the head of state and a prime minister is the head of government. Each country also has different political systems, electoral processes, and levels of decentralization of power.
The United Kingdom is a Parliamentary democracy with a Monarch (Queen Elizabeth II) as a constitutional Head of State. Her Prime Minister is Mr David Cameron, leader of the Conservative Party.
The head of state in the U.K is Gordon BrownThe queen is the head of State, she has the absolute power over the government and has the power to pass laws... so basically she is the head of government.
In parliamentary system the Prime Minister is the real head but in Presidential form of government the President is the real head.