 Madman (Marvel Comics)

Madman is a character from Marvel Comics, named Frank Charles (sometimes referred to as "Madman McGregor"). He is known for being an antagonist primarily associated with the superhero Deadpool. First appearing in "Deadpool" #15 in the 1990s, Madman has a somewhat tragic backstory. Initially a gun-toting criminal, he is often portrayed as being psychologically unstable, which contributes to his erratic behavior.