Because you like Alaska Young in Looking for Alaska
Morticia Addams hates anything bright and cheery and loves all things ghoulish, ghastly, and violent. See them in The Addams Family.
Henry Mills is an idealistic young boy with the heart of the truest believer. See them in Once Upon a Time.
Louise Belcher might be just a kid, but she can manipulate just about anyone with a pulse. All in the name of fun, of course. See them in Bob's Burgers.
Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.
Robin Scherbatsky is a former teen pop star who loves dogs and is scared of relationships. See them in How I Met Your Mother.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Phoebe Caulfield is a wise-beyond-her-years 10-year-old with an empathetic spirit. See them in The Catcher in the Rye.
After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.
David Nolan is a noble fairy tale prince with the heart of a hero, regardless of whether he can remember his past or not. See them in Once Upon a Time.
Cosette is an idealistic woman whose innocence stands in contrast to her harsh childhood. See them in Les Miserables.