Joker (Earth-1955)

"Did you ever had a really bad day? All it takes is one bad day to reduce the sanest man alive to lunacy. That's how far the world is from where I am. Just one bad day. You had a bad day once. Am I right? I know I am. I can tell. You had a bad day and everything changed. Why else would you dress up like a flying rat? You had a bad day, and it drove you as crazy as everybody else... Only you won't admit it!"

- - Joker

The Joker was the psychotic archery of Batman, a Metahuman with a clown like appearance, and a love for showmanship, violence, sadism and murdering.