Because you like Lester Freamon in The Wire

The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.

Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.

Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.

Orphan Bruce Wayne has a tortured soul, but he's trying his best to weed out corruption. See them in DC Extended Universe.

Whether it's punching a meteor or saving a teen from jumping, Superman tries to be in as many places as Kryptonianly possible. See them in DC Extended Universe.

If you died and came back to life, and then died more times and came back, you might stop battling evil mutants. Not Jean Grey. See them in X-Men Series.

Tarzan is walking the line between human and animal. Good thing he has excellent balance. See them in Tarzan.

Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.

This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.

A tough and compassionate loner, Emma Swan just might be the key to saving an entire fairy tale world. See them in Once Upon a Time.

Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.

Juno MacGuff is hoping sarcasm will get her through the stress of teenage life. And also, teenage pregnancy. See them in Juno.