Because you like Sebastian Valmont in Cruel Intentions

Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.

The brilliant Mona Vanderwaal is proof that undergoing an "extreme makeover" isn't always a good thing. See them in Pretty Little Liars.

Despite Norman Bates' typically kind and shy personality, he is also prone to occasional violent outbursts. See them in Bates Motel.

Everything is fascinating to Octavia Blake who has been locked away for her entire life. See them in The 100.

Donna Carmichael is a free-spirited single mom and gracefully aging hippie. See them in Mamma Mia!.

Rachel Goldberg is a drama-causing reality TV producer with the power to ruin people's lives at the click of a button. See them in UnREAL.

If this slick ad man doesn't like the conversation, he changes it—while drinking and smoking. See them in Mad Men.

Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.

Summer Roberts is privileged and preppy but also surprisingly open-minded and fiercely loyal. See them in The O.C..

Charlie Bucket may be down-on-his-luck, but his spirits are always sky high. See them in Charlie and the Chocolate Factory.

A born psychopath, don't expect Michael Myers to understand the difference between right and wrong. See them in Halloween.