Because you like Adele in Blue is the Warmest Color
Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.
He's a dedicated cop and a nice guy. But James Gordon is learning that Gotham is not a city for nice guys. See them in Gotham.
Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.
Peppy and optimistic, Joy is totally lost when it comes to dealing with Sadness. See them in Inside Out.
Eren Jaeger will erase the Titans from this world until not a single one remains. See them in Attack on Titan.
Given his ability to wrench street signs from the ground, Shizuo Heiwajima is a useful one to have in dangerous Ikekuburo. See them in Durarara!!.
When the going gets tough, Rick Grimes gets tougher. It's a very useful trait when the world goes to hell. See them in The Walking Dead.
Castiel might be an immortal angel, but the human world is still more than a little confusing. See them in Supernatural.
Joey Tribbiani's true passions in life are acting, sandwiches, football, sex, and asking ladies, "how you doing?" See them in Friends.
His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.
Thor is Asgardian nobility who is tickled by how us earthlings live. See them in Marvel Cinematic Universe.