Because you like Michael Kelso in That '70s Show

Billy Butcher's job is to give everyone hell by any means necessary. See them in The Boys.

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

Sensual, wild, and with a penchant for controlled substances, Lily is a ballet dancer who isn't afraid to let loose. See them in Black Swan.

Alex Dunphy's self-reliant intelligence comes with a healthy dash of sarcasm. See them in Modern Family.

Andrea Sachs' boss is not happy unless everyone around her is panicked, nauseous or suicidal. See them in The Devil Wears Prada.

You'll never get Alaska Young. And that's the whole point. See them in Looking for Alaska.

Stubborn, impulsive, and fun-loving, Hallie Parker is not afraid to devise some schemes to bring her family together. See them in The Parent Trap.

This barber doesn't cut hair. Sweeney Todd sends his clients down a chute to be baked into his partner-in-crime's pies. See them in Sweeney Todd: The Demon Barber of Fleet Street.

Although she is underestimated, Lagertha never fails to prove her worth as both a warrior and a mother. See them in Vikings.

Level-headed Ian Gallagher may be focused on his goals, but he's got a mischievous side too. See them in Shameless.

Curving free kicks and crosses is tough, but keeping her soccer passion from her disapproving family is way tougher for Jess. See them in Bend It Like Beckham.

Rogue's touch is literally deadly, and she's trying to learn from the older mutants how to manager her powers. See them in X-Men Series.