Because you like Andrew Ryan in Bioshock
Rainbow Dash's interests include flying, playing pranks, and generally being themost awesome pony around. See them in My Little Pony.
With her consciousness so easily shifted between bodies, Motoko Kusanagi is left unsure of who or what she really is. See them in Ghost in the Shell.
After finding a mysterious object in one of the many rooms in her father's mansion, Bulma is inspired to discover its secrets. See them in Dragon Ball.
Cosmo Kramer is an eccentric schemer whom you might know better as the "Assman." See them in Seinfeld.
Miles Morales was bitten by a radioactive spider, put on the webbed spandex, and beat up his first bad guy before his voice changed. See them in Marvel Cinematic Universe.
The self-proclaimed "only guilty man in Shawshank prison" has wisdom to share, such as the best way to smuggle a Rita Hayworth poster into a Maine prison. See them in The Shawshank Redemption.
Poison Ivy is a seductive, venomous botanist laments the fact that there are so many people to kill, yet so little time. See them in DC Extended Universe.
Thanks to the contributions of this 14-year-old, the world is only occasionally destroyed by his grandfather. See them in Rick and Morty.
Garnet is a Crystal Gem who'll protect her friends with her life. See them in Steven Universe.
Eddie Brock is a big-hearted investigative journalist who is going through the world's weirdest identity crisis. See them in Venom.
T'Challa is a regal superhero with the weight of the world (and particularly his nation) on his shoulders. See them in Marvel Cinematic Universe.