Because you like Peter Venkman in Ghostbusters

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.

Rick Dalton is an aging actor with insecurity issues. See them in Once Upon a Time in Hollywood.

This bite-sized, power-hungry plankton is determined to uncover the secret recipe for the Krusty Krab burger. See them in SpongeBob SquarePants.

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

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

Dolores Umbridge keeps her villainy hidden (albeit poorly) behind a sheen of sugary pink politeness. See them in Harry Potter Series.

A Wakandan spy, Nakia is capable, caring, and just the right amount of stubborn. See them in Marvel Cinematic Universe.

Jillian Holtzmann's madcap mind is always whirring and she will transform anything into one of her machines. See them in Ghostbusters (2016).

Ursula will oh-so-generously grant your wishes for a price. See them in The Little Mermaid.

Janet Weiss is just like any other girl trapped in a bizarre burlesque-show castle. See them in The Rocky Horror Picture Show.

Aladdin is a street-thief who is on his way up. Way, way up! See them in Aladdin.

Shawn Hunter may be a bit of a rebellious bad boy, but he has a heart that's pure gold. See them in Boy Meets World.