Because you like David Wooderson in Dazed and Confused

Sidney Prescott is trying to return to life as a regular, teenage girl – one who doesn't cause rooms to go silent when she walks in. See them in Scream.

A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.

Emmet Brickowski is so upbeat it's not even human. Everything is AWESOME! See them in The Lego Movie.

Scooby-Doo always keeps his priorities in order: eat snacks first, solve mysteries later. See them in Scooby-Doo.

Nicholas Angel is super-dedicated to his job as a police officer. Maybe a little too dedicated. See them in Hot Fuzz.

Michael Bluth is the only sane person in a family of eccentrics. At least, that's how he thinks of himself. See them in Arrested Development.

Stranded on Mars, Mark Watney is armed with quick wits, an electronic diary, disco music, and an undying resolve to make it back. See them in The Martian.

When push comes to shove, the usually overly cautious Luigi has the heart of a hero. See them in Super Mario Bros..

Nomi Marks is a brilliant hacker with an open-minded, accepting spirit. See them in Sense8.