Because you like Michael Corleone in The Godfather
Davos Seaworth is steadfast, intelligent, and trustworthy, which are hard traits to find in a place like Westeros. See them in Game of Thrones.
Luke Skywalker always wanted to leave home, but he didn't expect that it would be as part of a quest to rescue a princess and save the galaxy. See them in Star Wars Series.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Sophia Burset will teach you how to navigate the prison world and maybe how to make cute shower shoes from commissary items too. See them in Orange Is The New Black.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
It turns out breaking open an ancient cursed statue will do funny things to a girl like Enchantress. See them in Suicide Squad.
A loyal assistant to Nelson and Murdock, Karen Page has a way of finding trouble. See them in Marvel Cinematic Universe.
Hans Landa doesn't seem to have issues with Jews, but he hunts them because he's determined to do his job well. See them in Inglourious Basterds.
M. Bison is a diabolical megalomaniac hell-bent on dominating the world. See them in Street Fighter.
A scary monster on the outside, James P. Sullivan is really a softie on the inside. See them in Monsters, Inc..
Driven and straightforward with high-technology parts, EVE was sent to Earth to see if it is habitable. See them in WALL-E.