Because you like Nymphadora Tonks in Harry Potter Series

Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.

Beneath Yuji Sakai's meek exterior lies an exceptionally keen mind and a strong inner will. See them in Shakugan no Shana.

Chuck Bass is notorious for his flamboyant sense of style and love of partying. See them in Gossip Girl.

The personification of America is all about superheroes, hamburgers, and spreading democracy and justice. See them in Axis Powers Hetalia.

After several hundred years of shutting himself out from the rest of the world, Japan's not used to dealing with nations, See them in Axis Powers Hetalia.

The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.

Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.

A jaded skeptic who only wants to get paid, Garrett becomes involved in bigger struggles that force him to be less self-serving. See them in Thief.

Blunt, petty, neurotic, Larry David can never live and let live. See them in Curb Your Enthusiasm.

The son of Death has an obsession with perfection and symmetry. See them in Soul Eater.

Did he ever tell you the definition of insanity? Just wait, and this psychopath will do just that. See them in Far Cry 3.

Joel is a hardened, jaded survivor who keeps finding things to fight for. See them in The Last of Us.