Because you like The Grinch in Dr. Seuss' How the Grinch Stole Christmas
Billy Butcher's job is to give everyone hell by any means necessary. See them in The Boys.
Wolverine is a hot-blooded Canadian with an adamantium skeleton who's the best at what he does. See them in X-Men Series.
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.
Puss In Boots is a suave, honorable ladies man/cat who's not above playing cute to get you to let down your guard. See them in Shrek 2.
Basically a giant pillow come to life, Baymax is a medical robot created for the sole purpose of helping people. See them in Big Hero 6.
While Jay Gatsby doesn't necessarily like to attend his parties, he knows how to throw a world-class bash. See them in The Great Gatsby.
Ratchet is a shoot-first, ask-questions-later, and then-shoot-again kind of lombax. See them in Ratchet & Clank.
A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.
Where Ash comes from, food and shelter pay for themselves. Even as a penniless vagrant, he is able to pursue his dream of becoming a Pokémon Master See them in Pokemon.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.
Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.