Martin Bayfield

At 6'10", Martin Bayfield remains one of the tallest people ever to play rugby for England. As a second row forward, he won 31 caps for England and three for the British Lions during the 1990s, when he was also a serving police officer. After retiring from the game, he became a hugely popular after-dinner speaker. He has worked as a rugby presenter on ITV and BT Sport as well as hosting the BBC's Crimewatch programme, and was Hagrid's body double in the Harry Potter films.