An antihero is a main character in a story who does not act like a traditional hero. Examples of antiheroes are Marvel Comics The Punisher & Deadpool, Sega's "Shadow The Hedgehog", DC's Batman, Catwoman of Batman, Sweeney Todd, Light Yagami from the "Death Note" manga/anime series, Billy the Kid, Robin Hood, Kratos from the "God of War" video-game franchise and Prince Hamlet from the "Hamlet" play by William Shakespeare. Most of the time it means a character in fiction, television, or movies. Sometimes it is used to mean a living person or person from history.