Do you know what Gal Gadot, Hugh Hefner and MC Hammer share in common? All of these stars — and many more — once served their country as members of the Marines, Air Force and other divisions of the military.

Before becoming Wonder Woman, Gadot taught gymnastics and calisthenics as a combat instructor for the Israeli Defense Forces; Golden Girls star Bea Arthur became one of the first to join the Women's Reserve amid her time as a Marine; and even Girls alum Adam Driver was inspired to enlist following the September 11 attacks.

Scroll down to see find out which other celebrities served their country below.