Because you like Mikaela Banes in Transformers

Although Mako Mori may be small and quiet, she is a core of battle-hardened steel. See them in Pacific Rim.

More than any of her friends, Fluttershy is willing to see the best in everyone, a trait that has won over many enemies. See them in My Little Pony.

If the awesome Andie Walsh is from the wrong side of the tracks, we don't want to be right. See them in Pretty in Pink.

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

A brave but pessimistic nobleman, Boromir knows one does not simply walk into Mordor. See them in The Lord of the Rings.

If it means fulfilling her ambitions, Satsuki Kiryuin will show neither shame nor hesitation. See them in Kill la Kill.

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

Honest, true, and just, Ned Stark is a good man. Unfortunately, those traits are not assets in Westerosi politics. See them in Game of Thrones.

Lady Macbeth takes being a powerful woman to a whole other level. See them in Macbeth.

An inter-dimensional demon, Bill Cipher dreams of a more chaotic Gravity Falls. See them in Gravity Falls.

A literal fallen star, Yvaine is temperamental, sarcastic, and a bit on edge. See them in Stardust.