Because you like Velma Kelly in Chicago
Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.
When the Sorting Hat touched Draco Malfoy's head, it placed him in Slytherin, a house that has turned out more dark wizards than any other. See them in Harry Potter Series.
As an undercover cop, Schmidt is getting to relive high school as a cool kid. See them in 21 Jump Street.
An exuberant prankster, Naruto Uzumaki craves acknowledgement of any kind. See them in Naruto.
A gentle alchemist who is soul-bound to a giant suit of armor, Alphonse Elric is growing into the responsibility handed to him. See them in Fullmetal Alchemist.
There's no one cooler than this intergalactic smuggler who hangs out in dens of iniquity all over the galaxy. And Han Solo knows it! See them in Star Wars Series.
We're all puppets. Dr. Manhattan is just a puppet who can see the strings. See them in Watchmen.
After Rintarou Okabe develops the Phone Microwave, some of his fantasies start to seem uncomfortably real. See them in Steins;Gate.
For Kazuya Mishima, the power of the Devil is now his and his alone. See them in Tekken .
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.