Because you like Kevin Malone in The Office

Princess Bubblegum is brilliant and determined, but can display a nasty temper. See them in Adventure Time.

Lucius Malfoy is a judgmental social climber who has a bigoted superiority complex. See them in Harry Potter Series.

Kumar Patel is always high, always hungry for sliders. See them in Harold & Kumar Go To White Castle.

Audrey Horne may seem inquisitive and charming, but she can turn on a dime. See them in Twin Peaks.

Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.

An all-business doc , Miranda Bailey dispenses tough love to the interns she trains. Emphasis on "tough." See them in Grey's Anatomy.

You won't like him when Bruce Banner is angry. See them in Marvel Cinematic Universe.

Don't ask Rosa Diaz, a Brooklyn detective, to lighten up. Actually, to be safe, don't ask her to do anything! See them in Brooklyn Nine-Nine.

Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.

Experiment 626 was designed for one thing: to destroy everything he touches. See them in Lilo & Stich.

Velma Dinkley is all about getting results, not taking credit. She is the unsung hero of Mystery Inc. See them in Scooby-Doo.

It's a race against time to develop his theory of the origins of the Universe before Stephen Hawking's body and mind give out. See them in The Theory of Everything.