US Agent (John Walker) as Thunderbolts members - Characters, storylines, and people who should be in MCU Thunderbolts Fan Cast | myCast.io
US Agent (John Walker)
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U.S. Agent is a fictional character appearing in American comic books published by Marvel Comics, usually those starring Captain America and the Avengers. He first appeared in Captain America #323 as Super-Patriot. He was later redesigned as an incarnation of Captain America and, a few years later, as U.S. Agent
