Because you like DEATH in Discworld
Alex Vause's tattoos and tough exterior cover the fact that she's just a girl with a really intense crush. See them in Orange Is The New Black.
Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.
Dory is more than a little forgetful, but she'll always remember to have your back. See them in Finding Nemo.
Jim Halpert is a master at the art of making it through the work day, including participating in an office Olympics. See them in The Office.
He may forget his homework, lose his toad, and fall off brooms, but Neville Longbottom can also single-handedly destroy villains. See them in Harry Potter Series.
Haymitch Abernathy is a trainer for the tributes of District 12, although he's never sober enough to give much advice. See them in The Hunger Games .
In the simplest terms, in the most convenient definitions, people consider Brian a nerd. But he's more than that. See them in The Breakfast Club.
Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.
For Vada Sultenfuss, it's hard to embrace growing up when you're obsessed with death. See them in My Girl.
Mac is a karate-chopping, beer-chugging schemer. See them in It's Always Sunny in Philadelphia .