Because you like Minerva McGonagall in Harry Potter Series

Po is a clumsy, friendly panda who likes to take it easy. But now he's expected to save the world? See them in Kung Fu Panda.

Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.

Charming and confident, Gus Waters is determined to leave a lasting mark on the world. See them in The Fault in Our Stars.

An infamous vampire, Alucard is a one-man killing machine with a philosophical side. See them in Hellsing.

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

John Yossarian is trapped in irony as he must be insane to leave the war but if he does try to leave, he'll be deemed sane and will be forced to stay, See them in Catch-22.

Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.

Despite the undeniably awful turn her life has taken, Rachel handles herself with remarkable grace. See them in Me and Earl and the Dying Girl .

Talking to a stranger on a train is the best decision Jesse Wallace ever made. See them in Before Sunrise.

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.

Effy Stonem is cool and collected with a wry smile on her face and a cigarette between her lips. See them in Skins.

Although Morrigan knows every kind of magic there is, friendship is an untested area for her. See them in Dragon Age Series.