Because you like Xander Harris in Buffy the Vampire Slayer

Ellen Ripley defines the word "badass." When she's not leading her crew on an interstellar voyage, she's slaying terrifying creatures. See them in Alien.

Susie Salmon has a big heart, even though it's not beating anymore. See them in The Lovely Bones.

April Ludgate doesn't like sunshine. She's more of a blood and guts kinda girl. See them in Parks and Recreation.

An alien, a time-traveler, and an esper are following Haruhi Suzumiya, who – unknown to herself – is a near-omnipotent reality warper. See them in The Melancholy of Haruhi Suzumiya.

You'll never get Alaska Young. And that's the whole point. See them in Looking for Alaska.

Zoe Benson may seem like a shy girl-next-door, but she has the inner fortitude of a powerful witch leader. See them in American Horror Story.

Arthur Dent is an incredibly normal man on an incredibly abnormal adventure. See them in The Hitchhiker's Guide to the Galaxy.

A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.

While he might drive colleagues crazy with his antics, Jake Peralta cares about the Nine-Nine more than most things. Including personal hygiene. See them in Brooklyn Nine-Nine.

As a monster-hunter cursed with supernatural abilities, Geralt of Rivia is a cynic burdened by scruples in an unscrupulous world. See them in The Witcher.

The personification of America is all about superheroes, hamburgers, and spreading democracy and justice. See them in Axis Powers Hetalia.