Because you like April Kepner in Grey's Anatomy
After several hundred years of shutting himself out from the rest of the world, Japan's not used to dealing with nations, See them in Axis Powers Hetalia.
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.
Shrek is a nasty-on-the-surface ogre with a heart of gold and an earful of wax. See them in Shrek.
It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.
We defy you to find a man who's ever been cooler while simply saying his own name. See them in Casino Royale.
Adrian Agreste is a charming rich teenage boy, model, and hero in a catsuit. See them in Miraculous: Tales of Ladybug & Cat Noir.
Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.
V is a violent anarchist with literally nothing left to lose. But, he might have a point. See them in V for Vendetta.
Tony Stark's interests include cocktails, beautiful women, particle physics, and saving the world. See them in Marvel Cinematic Universe.
When dealing with a half-demon partner and a world of violence, Kagome Higurashi has plenty of chances for her true courage to shine. See them in Inuyasha.