Because you like Amy Pond in Doctor Who

Lexi Howard feels most like herself when she's on stage, but reality always finds a way of pulling her back. See them in Euphoria.

Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.

V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.

As a scaring Assistant, Mike Wazowski frightens children to collect their screams to be used as a power supply for the city. See them in Monsters, Inc..

Father to a murdered son and husband to a murdered wife, Maximus Decimus Meridius will have his vengeance. See them in Gladiator.

Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.

His superiority complex coupled with his bitter desire for revenge makes Vegeta a formidable foe. See them in Dragon Ball Z.

Walter White's knowledge of chemistry allows him to cook astoundingly pure meth, leading to a rapid – albeit tumultuous – rise in the criminal drug world. See them in Breaking Bad.

The Warden of the camp says that digging holes in the desert builds character, but Stanley Yelnats suspects there's more to it. See them in Holes.

Don't let his old age fool you, Heihachi Mishima is a ruthless pragmatist who values self-reliance above all else. See them in Tekken .

Jin Kazama is a fearsome warrior torn between the darkness and the light. See them in Tekken .

Kat Stratford is part of the "out" crowd and proud of it. See them in 10 Things I Hate About You.