Because you like Zaphod Beeblebrox in The Hitchhiker's Guide to the Galaxy

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

An outgoing and quirky optimist, Louisa Clark has a zest for life. See them in Me Before You.

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

Ponyboy Curtis is a "Greaser" on the surface, but he's a sensitive poet underneath. See them in The Outsiders.

It's easy for Brian O'Conner to fake his way into the world of extreme racing because he's been popping cars since his teenage years. See them in The Fast and the Furious.

A natural leader, Clarke Griffin dispenses both justice and mercy, and she does it all while being selflessly humble. See them in The 100.

Jenna Rink is physically 30 but emotionally 13. She has a better excuse than most. See them in 13 Going on 30.

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

Emily Fields has been very guarded, careful of whom she trusts and reveals her secrets to. See them in Pretty Little Liars.

Lorelai Gilmore loves coffee, talking fast, flirting, movie marathons, and her daughter. See them in Gilmore Girls.

Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.