X was a female resistance fighter and spy who opposed the Axis powers in France during its occupation by the Nazis in World War II. She disguised herself as a male Nazi in order to gather intellegence and avoid detection.

*Military Comics #8-13

*[http://goldenageheroes.blogspot.com/search/label/X%20of%20the%20UNDERGROUND Golden Age Heroes Blog]
Category:Comic Book Characters
Category:Quality Characters
Category:1942 Debuts
Category:Vernon Henkel - Creator
Category:War Heroes
Category:War Genre Characters
Category:Female Characters
Category:Spy Characters
Category:Protagonists
Category:Non-Powered Characters
Category:Master of Disguise Characters
Category:Real Name Unknown
Category:Nuelow Games Characters
Category:X Family Characters