
In Marvel Mystery Comics #32 (April 1942), the Red Skull unmasks Captain America and discovers his secret identity as Steve Rogers. I believe this is the first time a villain learns the secret identity of a costumed hero and survives.
In Marvel Mystery Comics #32 (April 1942), the Red Skull unmasks Captain America and discovers his secret identity as Steve Rogers. I believe this is the first time a villain learns the secret identity of a costumed hero and survives.