Because you like Marc Spector in Marvel Cinematic Universe
Helena is a mentally unstable, childish, and completely merciless. And most of all, she's an unstoppable killer. See them in Orphan Black.
Vanellope von Schweetz is princess of the Sugar Rush game who could care less about being royal. See them in Wreck it Ralph.
Jesse Aarons' frustration can only find outlet in another world. See them in Bridge to Terabithia.
Detective Alec Hardy doesn't let anyone get too close to him. See them in Broadchurch.
Toby Cavanaugh has trouble avoiding being manipulated. See them in Pretty Little Liars.
A suave manipulator, Sebastian Valmont is valiantly fighting off a developing conscience. See them in Cruel Intentions.
Anywhere there's adventure, Jaskier is there to write a catchy song about it. See them in The Witcher.
Point the fun-loving Pippin Took towards second breakfast, and he's one happy hobbit. See them in The Lord of the Rings.
This power-hungry Time Lord calls himself the "master of all." Bonus: he has 13 lives. See them in Doctor Who.
Dutiful, composed, and aloof, Sun Bak is the fighting force behind her team of eight "sensates" who are telepathically linked. See them in Sense8.