The Joker possesses what must arguably be the most dangerous criminal mind on the planet. With no moral compass to speak of and a sick sense of humor that derives joy from witnessing the pain of others, the notorious Clown Prince of Crime is the smiling foil to the Batman's grim and serious demeanor. With a reputation as infamous as that of the "Dark Knight", The Joker has became a one-man movement in the city of Gotham City, attracting a sea of followers as he proceeds to indulge in unthinkable crimes that would give even the cruelest career criminal pause.