Not surprisingly to many, British PM David Cameron doesn't speak any foreign languages. He does, however, have a deputy PM in the form of David Clegg who is actually fluent in five European languages. Clegg, it appears, is the only leader of political party in the UK who speaks a foreign language.
David's mother is Dutch, while his wife is actually Spanish and he can happily switch between English, Dutch and Spanish fluently. In addition, he is also proficient in both German and French, which among European political leaders (or Deputy Leaders) puts him at the top of the class with an A* grade.