Because you like Darla in Angel
With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.
Catherine Linton was once spontaneous and rowdy but ever since marrying the wealthy Edgar, she has morphed into a boiling pot of emotional outbursts. See them in Wuthering Heights.
A meticulous forensic scientist, Edward Nygma is insanely good at his job. Emphasis on the "insane" part. See them in Gotham.
Rogue's touch is literally deadly, and she's trying to learn from the older mutants how to manager her powers. See them in X-Men Series.
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.
People make more sense to the hyper-logical Temperance Brennan after they're dead. See them in Bones.
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.
Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.
Jail hasn't broken Andy Dufresne's spirit, but will his spirit help break him out of jail? See them in The Shawshank Redemption.
A kind, sensitive medical intern doing the best he can, George O'Malley sometimes struggles to keep up. See them in Grey's Anatomy.
Arizona Robbins loves being a pediatric surgeon, and the cute orthopedic surgeon downstairs makes coming into work worth her while. See them in Grey's Anatomy.
Though she has the normal insecurities of a 15-year-old, Aurora is both courageous and empathetic. See them in Maleficent.