Because you like Barney Stinson in How I Met Your Mother

For someone who swears she doesn't care for anyone, MJ Jones spends a lot of time observing her classmate Peter Parker. See them in Marvel Cinematic Universe.

Izzie Stevens is a model-turned-med student who can do it all, even if people underestimate her. See them in Grey's Anatomy.

Keeping your cool is just as useful in the underworld as in war, and Michael Corleone is stone-cold. See them in The Godfather.

Daniel LaRusso is a Jersey kid in L.A. who is learning about karate and life from the mysterious Mr. Miyagi. See them in The Karate Kid.

Tamaki Suoh is always the star of the scene because he's the one making a scene. See them in Ouran High School Host Club.

While Cassie Ainsworth's head is always in the clouds, her heart is always in the right place. See them in Skins.

Sidney Prescott is trying to return to life as a regular, teenage girl – one who doesn't cause rooms to go silent when she walks in. See them in Scream.

A crabby troll, Karkat Vantas is perpetually angry about his lot in life. See them in Homestuck.

Beth March is the glue that holds her family together. See them in Little Women.

Celine's a spontaneous Parisian college student enjoying the night of her life. See them in Before Sunrise.

For the sake of science, Kurisu Makise will persevere no matter how deep into the dark secrets of the world she finds herself. See them in Steins;Gate.

Stan Marsh is a fourth grader who is the ladies man of his classroom. See them in South Park.