John Walker

Jonathan?F. "John" Walker?is a former Captain of the?United States Army's?75th Ranger Regiment?who was chosen to succeed?Steve Rogers?as the second?Captain America. However, his aspirations of living up to Rogers' legacy attracted the ire of?Sa?and?Bucky Barnes?in their pursuit of the?Flag Smashers, during which he took the?Super Soldier ?Karli Morgenthau. When his partner and best friend?Lemar Hoskins?was killed in action, Walker brutally murdered a surrendering?foreign national?in public, leading to him being stripped of his mantle and discharged from the United States Army with total loss of rank. Walker?confronted?Morgenthau again in?New York City?but chose to abandon his revenge to join Wilson and Barnes in thwarting her attack on the?GRC. Despite his discharge, Walker was recruited by government agent?Valentina Allegra de Fontai plus Bucky hates John and Sam and Bucky try to take back the shield