Tony Blair was Prime Minister of the United Kingdom of Great Britain and Northern Ireland and Leader of the Labour Party between 1997 and 2007. He was MP for Sedgefield from 1983 until his resignation in 2007.
Blair welcomed the Simpsons to the London Heathrow Airport terminal, along with other arrivals. Homer tries to bribe him with an American dollar to get him to leave them alone, but he instead steals it. Lisa suggests that Blair gives the family a personal tour of the country, but he declines, flying away on a jetpack to greet a Dutch couple at Gate 23.