X, the Phantom Fed

Golden Age Origin
X, the phantom of the FBI, he fights single handed against sinister lords of crime. This "man of a million faces" has developed the art of disguise into an exact science.Not even his few intimates have seen his real face and no one has penetrated his disguises that can fool anyone...except...Death.

Issue 1 features X battling the Green Mask III

Golden Age Appearances

 * Sure Fire Comics #1-3