Because you like Sarah Bowman in Day of the Dead

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.

Abandoned by her parents, Rey made her living selling scrap metal and got used to being her own friend and teacher. See them in Star Wars Series.

Yoda is wise, patient, and capable of kicking ass. He's done his best to mentor young Jedi and protect the balance of Light and Dark. See them in Star Wars Series.

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

Sheldon Cooper is brilliant in every way except, well, interacting with any human being. See them in The Big Bang Theory.