Captain America [James Buchanan; Bucky Barnes]; Falcon [Sam Wilson]; A.I.M.; 1950s Captain America; Arnim Zola; Red Skull [Johann Schmidt; Aleksander Lukin]; Sharon Carter [Agent 13]; Dr. Faustus; Black Widow [Natasha Romanov]; Senator Gordon Wright; Sin [Synthia Schmidt]; S.H.I.E.L.D.