1. John Wayne.

Metro-Goldwyn-Mayer Studios

For such a military supporter to not have served in the military seems strange — and it seemed strange to him too.

As a matter of fact, his service (or lack thereof) during World War II seemed to follow the actor for the rest of his life. But when he died, a certificate was found among his personal papers, from William Donovan, commander of the OSS, thanking him for his service to the office.

All the Duke ever divulged about WWII service was gathering information while on a trip to Brisbane to entertain American troops, but ever since his death rumors swirled about what exactly his roles could have been. Only two people knew for sure — Wayne and Donovan.