Flag-Smasher

Flag-Smasher is a major antagonist in Marvel Comics. He is a supervillainous terrorist who becomes rivalled with Captain America and is also the leader of U.L.T.I.M.A.T.U.M., a terrorist organization that wants to unite mankind and separate them from their symbols. He is also an enemy of Ghost Rider, the Punisher, and Moon Knight. There are three incarnations of the character, the first and original is Karl Morgenthau, the second was Guy Thierrault, and the third was Carl.

He first appeared in Captain America #312 in December of 1985.

Adaptations

A group called the Flag Smashers appeared in the Marvel Cinematic Universe / Disney+ series The Falcon and the Winter Soldier (2021), led by a female version of the Karl Morgenthau incarnation renamed Karli Morgenthau (portrayed by Erin Kellyman).