X-5. X-5 is a top secret agent for the U.S. government. Later on he is called "G-5, Super Agent." He appears in stories with titles like “Assignment: Tradheim,” “Mystery of the Red Lantern,” and “The Masked Agent.”
First Appearance: Hit Comics #1 (Quality), July 1940. 16 appearances, 1940-1941. Created by Will Eisner and Charles Sultan.
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