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 Batman's grim and serious demeanor. With a reputation as infamous as that of the Dark Knight, The Joker has become 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.