Because you like Vivian Ward in Pretty Woman

A Silurian lizard woman, Madame Vastra has a penchant for puzzles and interspecies romance. See them in Doctor Who.

Once a lonely hat maker, Sophie Hatter is now cleaning goo from bathtubs and cooking breakfast for the grumpiest wizard in all the land. See them in Howl's Moving Castle.

While Cassie Ainsworth's head is always in the clouds, her heart is always in the right place. See them in Skins.

Franklin "Mouse" Finbar is a jock paying the price for his mistake. See them in Jumanji.

Tifa Lockhart is part mother hen, part martial arts bad-ass. See them in Final Fantasy Series.

For someone who swears she doesn't care for anyone, MJ Jones spends a lot of time observing her classmate Peter Parker. See them in Marvel Cinematic Universe.

With an A.I. as loyal and witty as Cortana, who needs humans? See them in Halo.

Irene Adler has to use both her brains and her body to survive. Luckily, she's usually the most brilliant person in the room. See them in Sherlock.

James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.

A blood-thirsty warrior on the battlefield, Ragnar Lothbrok is a dedicated family-man at home. See them in Vikings.

While his twin tries to save lives, Millions Knives does the best to end them. See them in Trigun.

Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.