Because you like Marv in Sin City
Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.
If you died and came back to life, and then died more times and came back, you might stop battling evil mutants. Not Jean Grey. See them in X-Men Series.
Jorah Mormont is loyal to his queen. And he's quite in love with her as well. See them in Game of Thrones.
She's a survivor of gunshots, of being buried alive, nand of paralysis. And now Beatrix Kiddo is going to make her abusers pay. See them in Kill Bill vol. 1.
Vengeance is William Wallace’s game. With his father, brother, and wife killed by the English, he slaughters the garrison and sacks cities. See them in Braveheart.
If anyone can stay optimistic and friendly under harsh alien rule, it's Alyx Vance. See them in Half-Life 2.
A ruthless militant, Raza will do anything to take down Tony Stark. See them in Marvel Cinematic Universe.
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.
Lois Lane's journalistic success is the result of her tenacity. She will doggedly pursue her leads until discovering the information she needs. See them in DC Extended Universe.
Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.
If Lisbeth Salander can hurt a bastard who deserves it by digging up stuff about him, she feels good. See them in The Girl with the Dragon Tattoo.