Because you like Carl Gallagher in Shameless
Caitlin Snow believes that burying herself in science is the best way to save the day or to mend a broken heart. See them in DC Extended Universe.
Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.
Tiffany Doggett is usually a nice, good Christian. Just don't get her riled up! See them in Orange Is The New Black.
Ash Williams is a houseware clerk at S-Mart and the Chosen One. See them in The Evil Dead.
Tiffany Maxwell wishes people would stop reminding her about her dead husband. See them in Silver Linings Playbook.
Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.
Newt Scamander is more comfortable with animals than people, even if the animals are super-dangerous magical creatures. See them in Fantastic Beasts and Where To Find Them.
This mathematical genius doesn't have time for small talk; Alan Turing needs to break Enigma, the Nazi's cipher machine. See them in The Imitation Game.
Clarice Starling is patiently working with one serial killer to stop another. See them in The Silence of the Lambs.
