Because you like Claudia in Interview with the Vampire: The Vampire Chronicles

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

Nick Carraway is the perfect observer: always there for the events, but never too involved. See them in The Great Gatsby.

Anastasia Steele's new boyfriend Christian might as well come with a warning label that reads "Beware: Severe Issues That Might Warrant a Trip to Dr. Phil." See them in Fifty Shades of Grey.

Catwoman might be slightly unhinged, but you can't say this feline villainess isn't confident. See them in DC Extended Universe.

Tina Goldstein is better at getting the job done than following the rules. See them in Fantastic Beasts and Where To Find Them.

Kathryn Merteuil may be a vain sociopath, but you won't be able to look away. See them in Cruel Intentions.

Gomez Addams fills his days with ghoulish and ghastly forms of recreation, enjoying life and all its pleasures to the fullest. See them in The Addams Family.

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

Carol Aird is driven to fight to make her life better, regardless the consequences. See them in Carol.