Because you like Michael Kelso in That '70s Show

Castiel might be an immortal angel, but the human world is still more than a little confusing. See them in Supernatural.

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

For Dana Scully, sometimes looking for extreme possibilities makes you blind to the probable explanation right in front of you. See them in The X-Files.

Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.

Hans Landa doesn't seem to have issues with Jews, but he hunts them because he's determined to do his job well. See them in Inglourious Basterds.

Running away from murderous aliens has turned into an interstellar chase for Jupiter Jones. See them in Jupiter Ascending.

Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .

Intelligent and compassionate, Hazel Lancaster would rather face things, even bad things, than sugarcoat the truth. See them in The Fault in Our Stars.

Misato Katsuragi is never without a beer in her hand or her pet penguin by her side. See them in Neon Genesis Evangelion.

Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.

When the going gets tough, Dre Johnson gets tougher. Well, he'd like to think he does. See them in Blackish.

A benevolent madman with a blue box, The Doctor is traveling through time and space to heal the wounds of the universe. See them in Doctor Who.