Tom Cruise and William Mapother
Tom Cruise and “Lost” actor William Mapother’s fathers are brothers, making the actors first cousins. Cruise was born Thomas Cruise Mapother IV, but changed his name early in his career. Mapother has appeared in five of Cruise’s films, including “Mission: Impossible II” and “Magnolia.” —XFINITY Entertainment Staff (Photos by Larry Busacca, Frederick M. Brown/Getty Images)
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