Because you like Jenny Schecter in The L Word
Edward Elric has a quick mind along with a quick temper. See them in Fullmetal Alchemist.
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.
Severus Snape is a misanthropic potions teacher with a vindictive streak. See them in Harry Potter Series.
John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.
Faced with inequality, Gale Hawthorne has a rebellious spirit that only grows. See them in The Hunger Games .
Although Penny's friends have genius-level IQs, they regularly come to her for advice and insight. See them in The Big Bang Theory.
Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.
After surviving consecutive fights-to-the-death (damn you, President Snow!), Katniss Everdeen is thrust to the front lines of a real war. See them in The Hunger Games .
Steven Universe is an excitable youth who likes junk food and trying to save the world. See them in Steven Universe.
Marty McFly is a skateboarder, aspiring rock star, and reluctant time-traveler. See them in Back to the Future.
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.