Because you like Jimmy Dugan in A League of Their Own
Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.
Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.
Although Theon Greyjoy is treated well, he's still essentially a hostage. And that isn't so easy for him to forgive. See them in Game of Thrones.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.
Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.
Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.
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.
Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.
Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.
Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.