Prince William. Prince William, Duke of Cambridge, Order of the Garter, Order of the Thistle, Personal Aide-de-Camp, second in line to the throne of England…and star water polo player? That's right—Prince William was captain of his college water polo team at St. Andrews University. Some people have it all, don't they?

Sean Paul. The Grammy-winning singer and rapper played on the Jamaican national water polo team until the age of twenty-one. We're sure he's got the right temperature to stay warm in the pool.

Alexander Fleming. The discovery of penicillin is one of the most important advances in medical history, and Alexander Fleming is the guy responsible. Lesser known is that Fleming chose to attend med school at St. Mary's because it was the only one around with a water polo program.

Paul Martin. Before his career in politics, this former Canadian Prime Minister played water polo while attending St. Michael's College in Vermont.