Frank Miller injected noir grit and moral ambiguity into American comics, reshaping superheroes and action genres alike. With landmark works like The Dark Knight Returns, Daredevil: Born Again, and Sin City, he introduced cinematic pacing, hardboiled narration, and stark chiaroscuro visuals. Miller’s reimagining of Batman influenced decades of storytelling, while 300 and Ronin pushed formal and thematic boundaries. Though polarizing, his bold, uncompromising style helped elevate comics to new artistic heights, merging pulp influences with formal innovation. Miller’s impact is foundational, leaving an unmistakable mark on both the medium and its place in pop culture.