Agent X

A mysterious amnesiac mercenary who emerged with no memory of his past, Agent X burst onto the scene wielding lethal combat skills and a sardonic sense of humor, operating in the morally murky world of guns-for-hire while questions about his true identity lingered.

Born from the creative vision of Gail Simone and Udon in Deadpool #68 (2002), Agent X is a Modern Age Marvel mercenary who carved out enough of an identity to headline their own series — no small feat in the crowded, wisecracking corner of the Marvel universe. With appearances stretching across more than two decades and into titles like Cable & Deadpool and Wolverines & Deadpools, this character has proven surprisingly durable company in some of Marvel's most irreverent books. The rogues' gallery of familiar faces sharing those pages — Deadpool, Wade Wilson, Outlaw, Sandi Brandenberg, and Inez Temple — tells you exactly the flavor of chaotic, gun-for-hire storytelling Agent X calls home. With a key issue already to their name and a run still going strong into 2025, this is one Modern Age wildcard worth tracking down.