Because you like Rose Tyler in Doctor Who

This android may not have emotions, but Lt. Commander Data's curiosity about humanity is endless. See them in Star Trek: The Next Generation.

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

Sansa Stark is a fan of all things pretty. Unfortunately, her life is about to get extremely ugly. See them in Game of Thrones.

A powerful priestess, Melisandre is shrouded in mystery and lots of red. See them in Game of Thrones.

Edmund Pevensie isn't a bad person, but he did sell his siblings out for a tin of Turkish Delight. See them in The Chronicles of Narnia.

Aslan represents everything good and just, he's just not super reliable. See them in The Chronicles of Narnia.

Call her. Beep her. If anyone's in trouble, Kim Possible is there. See them in Kim Possible.

Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.

Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.

As a doctor-in-training, John Dorian should have his head in the game. But most of the time, it's in the clouds. See them in Scrubs.

Chuckie Finster is a baby afraid of everything from clowns to closets, unless his best friend's by his side. See them in Rugrats.

It's hard enough for Marta Cabrera to be part of a murder investigation, but when you can't lie? See them in Knives Out.