Because you like The Wicked Witch of the West in The Wizard of Oz

Felicity Smoak is a brilliant hacker who nonetheless becomes tongue-tied in front of attractive men. See them in DC Extended Universe.

Kathy is a natural caretaker who strives to find hope in even the darkest of times. See them in Never Let Me Go.

For Jack Pearson, the best thing about having triplets is giving three times the love. See them in This Is Us.

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.

Miss Havisham is the creepiest old rich lady in town. See them in Great Expectations.

Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.

If Eleanor Shellstrop's true identity is revealed, she'll be sent to The Bad Place. See them in The Good Place.

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

Though she can seamlessly flit between glamorous identities, Sydney Prosser is more vulnerable than she pretends to be. See them in American Hustle.

Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.

This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.

Burton Guster is a level-headed investigator with a "Super Sniffer" nose. See them in Psych.