Secret Agent X-9

From 1950 onward, Mel Graff both wrote and illustrated this long-running comic series from Feature Productions, following the espionage exploits of a shadowy government operative. Over 32 issues, Graff’s clean, atmospheric art and taut storytelling defined the character’s Cold War-era adventures, making this a quietly influential entry in the spy genre. Its sustained run under a single creative hand gives it a consistent, distinctive voice in mid-century comics.