Because you like Optimus Prime in Transformers

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

Raiden is an efficient soldier haunted by his repressed past. See them in Metal Gear Series.

Boomerang is equally skilled at tossing boomerangs and tossing back beers. See them in DC Extended Universe.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

He might look like a pretty boy, but resourceful Leon Scott Kennedy is the man to have at your side during a crisis. See them in Resident Evil Series.

James T. Kirk is more than ready to face the final frontier. See them in Star Trek.

Django was once a slave. Now that he has a taste of freedom, he understandably wants a full meal. See them in Django Unchained.

Char is always thinking two or three steps ahead of the enemy. See them in Mobile Suit Gundam Series.

Even the smallest person can change the course of the world, if he's brave enough. See them in The Lord of the Rings.

His murderous megalomania aside, Loki is quite charming. Just don't mention his strapping older brother; he's a tad jealous. See them in Marvel Cinematic Universe.