Because you like Egon Spengler in Ghostbusters

Summer Roberts is privileged and preppy but also surprisingly open-minded and fiercely loyal. See them in The O.C..

Tracy Turnblad's got rhythm, and she's determined to share her dance moves with the world. See them in Hairspray.

Korra is stubborn, outgoing, and faced with huge responsibilities she might not be ready for. See them in The Legend of Korra.

Hiccup Haddock III may be the only Viking nerd in recorded history. See them in How to Train Your Dragon.

The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.

Effy Stonem is cool and collected with a wry smile on her face and a cigarette between her lips. See them in Skins.

Sterling Archer is a fun-loving, car-driving spy extraordinaire. But one can tell his mother didn't hug him as a child. See them in Archer.

Ellie is more world-weary than most 14-year-olds. You would be too if your world was infested with zombies. See them in The Last of Us.

Hawkeye is most comfortable perched above the action, keeping an eye on everything and using a well-timed arrow to save the day. See them in Marvel Cinematic Universe.

Aiden Pearce is a hacker who knows how dangerous the world can be, both online and off. See them in Watch Dogs.

Michael Scofield is no criminal, and he didn't get jailed by accident. See them in Prison Break.