Joker

One of the most iconic super-villains in the DC universe and in popular culture in general, he is primarily known for being the dark knight’s archenemy. A criminal mastermind with a sadistic sense of humour, he is recognisable by his extravagant style and manic grin. As disturbing and bizarre as the following quotes might be, you will also find that they are thought-provoking.
Smile, because it confuses people. Smile, because it’s easier than explaining what is killing you inside.
The Joker – Heath Ledger