Because you like Barry Egan in Punch Drunk Love
Pro: Johan Liebert is handsome and charming. Con: he's also a sociopathic killer. See them in Monster (TV Show).
An obsessive schoolgirl, Yuno has two sides to her personality, and both are equally unnerving. See them in The Future Diary.
For somebody who won't answer questions, the enigmatic C.C. sure asks a lot of them. See them in Code Geass.
The Sohma family is just plain cursed, and Yuki Sohma has to learn to live with it – or so he thinks. See them in Fruits Basket.
Winry Rockbell is an energetic tomboy mechanic with an empathetic streak. See them in Fullmetal Alchemist.
Misato Katsuragi is never without a beer in her hand or her pet penguin by her side. See them in Neon Genesis Evangelion.
Stoic, cynical, and independent, Homura Akemi is an alluring enigma. See them in Puella Magi Madoka Magica.