Because you like Christian Grey in Fifty Shades of Grey
Christine Daae has been secretely taking lessons from a phantom musician. It sounded less creepy in her head. See them in The Phantom of the Opera.
Wendy Corduroy is the ultimate in cool in Gravity Falls. See them in Gravity Falls.
Chanel Oberlin is a big fan of herself, and she can't see why anyone else wouldn't be too. See them in Scream Queens.
Castiel might be an immortal angel, but the human world is still more than a little confusing. See them in Supernatural.
A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.
Eddie Brock is a big-hearted investigative journalist who is going through the world's weirdest identity crisis. See them in Venom.
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
Introverted Kira Yukimura is sweet, bubbly, and eager to make friends. See them in Teen Wolf.
Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.
Sabriel is smart enough to understand the dangers that await her and brave enough to face them anyway. See them in Abhorsen Series.
A vampire hunter, Integra Hellsing doesn't tolerate failure, least of all her own. See them in Hellsing.