Because you like Rose Tyler in Doctor Who
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
Audrey Horne may seem inquisitive and charming, but she can turn on a dime. See them in Twin Peaks.
A consummate schemer with a knack for solving mysteries, Shawn Spencer has trouble taking anything seriously. See them in Psych.
A house elf, Dobby is loyal, compassionate, and yearning for freedom. See them in Harry Potter Series.
This elf loves smiling, eating sugar, and spreading Christmas cheer. And no matter what, Buddy always sees the best in people. See them in Elf.
Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.
Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
Nandor is a relentless vampire who never admits he's wrong, loves glitter, and can't use a tablet. See them in What We Do In The Shadows.
Frederick Frankenstein is an eccentric (O.K., maybe a little insane) professor who is excited to be delving into his family's past. See them in Young Frankenstein.
Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.