Because you like Davy Jones in Pirates of the Caribbean: the Curse of the Black Pearl
The black sheep of his family, Rhett Butler grew up to have charm and to see things as they are. He just doesn't give a damn anymore. See them in Gone with the Wind.
It's certainly easier to get great footage of crimes when you can guarantee they'll happen. See them in Nightcrawler.
A gifted detective, Rust Cohle is as dark and twisty as any murderer he chases. See them in True Detective Season 1.
Charles Boyle is the human equivalent of a puppy, only slightly less adorable. See them in Brooklyn Nine-Nine.
Alyssa Foley is a blunt and crass teenage runaway. See them in The End of the F World.
Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.
Mystique is a shape-shifting mutant who, after too many disappointments, does not want to co-exist with humans. See them in X-Men Series.
World domination and Superman's demise are next on Lex Luthor's to-do list. See them in DC Extended Universe.
An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.
A reformed former outlaw, John Marston doesn't want any trouble, yet somehow trouble always seems to find him. See them in Red Dead Redemption.
Ex-adviser to the king and most powerful sorceress, Yennefer is determined to be even stronger to attain her freedom in a war-torn world. See them in The Witcher.