Because you like Optimus Prime in Transformers

As the hero of time, Link is reborn throughout history, always with the purpose of fighting and defeating the evil Ganon. See them in The Legend of Zelda.

Loyal to his family and associates and distrustful of anyone else, Tony Soprano is a good guy to have on your side. See them in The Sopranos.

Sookie Stackhouse is a waitress who can read minds and break hearts. See them in True Blood.

Charismatic, sociopathic, and dramatic, Charlie Bronson wants nothing more than to be famous. See them in Bronson.

Harry Potter is the boy who lived! See them in Harry Potter Series.

Sydney Bristow is a kick-ass double agent on a mission for revenge. See them in Alias.

Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.

Ted is a cursing, smoking, drinking teddy bear who's anything but cuddly. See them in Ted.

Working as a captain in the American Expeditionary Forces and a spy for British Intelligence, Steve Trevor wants to end World War I once and for all. See them in DC Extended Universe.

As Marlena Rosenbluth is finding out, confidence in the limelight doesn't always translate to power at home. See them in Water for Elephants.

Sandy Olsen is out of her head, hopelessly devoted to Danny. See them in Grease.

Terence Fletcher is a brutal and unflinchingly strict music teacher hell-bent on whipping his students into shape. See them in Whiplash.