Because you like Sheldon J. Plankton in SpongeBob SquarePants

Serena van der Woodsen is a wild child. Too wild, her friends and family might argue. See them in Gossip Girl.

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

Homer Simpson is a beer-loving disaster in charge of nuclear safety in Springfield. Everybody run! See them in The Simpsons.

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

With a song always on her lips and her heart on her sleeve, Maria von Trapp is the governess every kid dreams of. See them in The Sound of Music.

Not only could Hellboy avenge your death, he'd also have a sense of humor about it and not let it ruin the rest of his night. See them in Hellboy.

When Andrew Neiman is not in classes during the day, he's rehearsing his drums until his hands bleed at night. See them in Whiplash.

Ahsoka Tano hopes to be a very powerful and knowledgeable Jedi one day. See them in The Clone Wars.

Nina Sayer finally landed the role of prima ballerina, but as tension ramps up in rehearsal, she starts losing her mind. See them in Black Swan.

Ace pilot Asuka Langley Soryu is confident, haughty, and a little less grown-up than she pretends to be. See them in Neon Genesis Evangelion.

Maya Lambert is an obsessive intelligence officer with tunnel vision leading toward Osama bin Laden. See them in Zero Dark Thirty.

After becoming accepted into the group of popular girls, Tracy Freeland has turned from a sweet and reserved teenager into a monster. See them in thirteen.