Because you like Alison Scott in Knocked Up
Tobias "Four" Eaton is only afraid of four things, but you should probably be afraid of him. See them in Divergent.
Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.
If you hang out with Bender in cool dive bars in 31st century New York, make sure you're on his "Do Not Kill" list. See them in Futurama.
Stewie Griffin is just your average evil-genius, talking, sociopathic baby. See them in Family Guy.
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.
Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.
Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.
Po is a clumsy, friendly panda who likes to take it easy. But now he's expected to save the world? See them in Kung Fu Panda.
Wolverine is a hot-blooded Canadian with an adamantium skeleton who's the best at what he does. See them in X-Men Series.
Make sure not to anger the Hulk or else he will transform into a giant green monstrosity and smash anything in his way. See them in Marvel Cinematic Universe.
Aragorn is the one true king, a title he is too humble to accept. See them in The Lord of the Rings.