Tom Cruise and William Mapother

Okay, so we all know the ‘Top Gun’ star by his stage name Tom Cruise, but did you know that his real name is actually Thomas Cruise Mapother IV.

The A-Lister shares a last name and family with his cousin and fellow actor, William Mapother, as their dads are brothers.

The two actors have also acted together in five films, including ‘Minority Report’, ‘Vanilla Sky’, ‘Born on the Fourth of July,’ ‘Magnolia’, and ‘Mission: Impossible II’.