Because you like Geordi La Forge in Star Trek: The Next Generation

A Hollywood starlet with a vindictive streak, Madison Montgomery is one witch that you shouldn't cross. See them in American Horror Story.

Alyssa Foley is a blunt and crass teenage runaway. See them in The End of the F World.

Christian Grey is just as controlling in the bedroom as the boardroom. See them in Fifty Shades of Grey.

It’s usually the good-looking, charismatic, play-by-their-own-rules types that get everyone into trouble, and Tyler Durden is Exhibit A. See them in Fight Club.

Remy could be a five star Michelin chef, the only problem is that he is quite literally a rat. See them in Ratatouille.

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.

She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.

Mrs. Lovett is the proud purveyor of the worst, and most grisly, pies in London. See them in Sweeney Todd: The Demon Barber of Fleet Street.

When you live your life in public, like Mima Kirigoe, it's hard to know who you really are. See them in Perfect Blue.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

The only thing that can match Rose's looks are her hot temper and free spirit. See them in Titanic.

Tina Belcher is on the cusp of puberty, and she has no shame when it comes to boys, butts, and brassieres. See them in Bob's Burgers.