Because you like Booker DeWitt in Bioshock Infinite
Marge Simpson is a mostly happy housewife and subscriber to Sponge and Vacuum Magazine. See them in The Simpsons.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.
Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.
Jughead Jones loves burgers, his friends, and philosophizing with his unique brand of wisdom. See them in Archie Comics.
Wendy Testaburger is a born leader who is not afraid to stand up to the other fourth graders for what she believes in. See them in South Park.
A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.
Jeff Winger thinks he's too cool for school, which is a problem because he just enrolled in community college. See them in Community.
After figuring out how both the light and dark halves of his soul could co-exist, Jak is maturing into a real hero. See them in Jak and Daxter.
A great galactic bounty hunter, Samus Aran is not as good at expressing emotions. See them in Metroid.
Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.
