Because you like Gary the Snail in SpongeBob SquarePants
Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.
They say money can't buy happiness, but this reckless, high-flying banker knows otherwise. See them in The Wolf of Wall Street.
Walter White's knowledge of chemistry allows him to cook astoundingly pure meth, leading to a rapid – albeit tumultuous – rise in the criminal drug world. See them in Breaking Bad.
Jin Kazama is a fearsome warrior torn between the darkness and the light. See them in Tekken .
Frank Ginsberg is the number one Proust scholar in the world, but he recently failed at committing suicide. See them in Little Miss Sunshine.
Equal parts klutzy and clever, Ella is not afraid to take her fate into her own hands. See them in Ella Enchanted.
Betty Cooper seems like a sweet girl, but she also has a dark side and can go beyond what's safe or sane. See them in Archie Comics.
Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.
Ellie is more world-weary than most 14-year-olds. You would be too if your world was infested with zombies. See them in The Last of Us.
Vivian Ward is a no-nonsense working girl with fairy-tale dreams. See them in Pretty Woman.
A secret smoker, Margot Tenenbaum has plenty more secrets where that came from. See them in The Royal Tenenbaums.