Flag-Smasher

The Flag-Smasher is the name used by different anti-nationalist supervillains appearing in American comic books published by Marvel Comics: Karl Morgenthau and Guy Thierrault. The original version was most often a foe of Captain America while other adversaries include the Punisher, Moon Knight, Ghost Rider, the Runaways, the Liberteens and Deadpool. 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).