Because you like Nymphadora Tonks in Harry Potter Series

Greg Heffley will be famous someday, but now he's stuck in class with morons. See them in Diary of a Wimpy Kid.

Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.

Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.

Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.

Claire Standish is a popular, perfect princess who's deeper than she seems. See them in The Breakfast Club.

The White Queen been treated horribly, but the day of her victory is almost near. See them in Alice in Wonderland.

Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.

How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.

Sarcastic and always complaining, C3PO is a droid that despite his quirks you always want by your side. See them in Star Wars Series.

Matt Flamhaff is not too concerned about being part of the popular crowd. Too bad his best friend is. See them in 13 Going on 30 .

A childlike space cadet, Brittany Pierce has a surprisingly open-minded spirit. See them in Glee.

Bodhi Rook is a defected pilot for the Galactic Empire dead set on destroying the Death Star. See them in Rogue One.