James Buchanan "Bucky" Barnes is the best friend of Steve Rogers from childhood who was thought to have died during World War II, while on a mission with Captain America. However, decades later he was revived as the assassin codenamed "The Winter Soldier". He was mentioned in "Seeds", his name read by Skye as it appeared on the Wall of Valor at the S.H.I.E.L.D. Academy of Science and Technology. He also appears in a photograph of the Howling Commandos that is hung on the wall in Trip's mother's house, which can be seen when Coulson goes to inform her of her son's death in "Aftershocks".