Alexander Pierce

Alexander Pierce is a major antagonist in the Marvel Cinematic Universe, serving as the main antagonist of Captain America: The Winter Soldier while his 2012 self appeared as a minor antagonist in Avengers: Endgame and a background character in Loki.
He was the secret head of HYDRA and its top undercover operative inside the United States Government, S.H.I.E.L.D., and the World Security Council who used HYDRA's forces within S.H.I.E.L.D. to give HYDRA absolute control over the world. His plan, Project Insight, was foiled by Captain America and the loyal remnants of S.H.I.E.L.D., and was ultimately killed by former longtime friend, Nick Fury.
He was portrayed by Robert Redford.