Frank Castle is a fictional character from the Marvel Comics universe, known for his relentless pursuit of justice. After witnessing the brutal murder of his family by criminals, he becomes the vigilante known as the Punisher. Unlike traditional superheroes, Frank uses lethal force to eliminate those he sees as threats to society, often operating outside the law. His iconic skull emblem symbolizes his fierce approach to crime-fighting. The Punisher has appeared in various comic series, movies, and television shows, gaining a dedicated fanbase. Despite his violent methods, many admire his unwavering commitment to avenging the innocent and punishing the guilty.