Because you like Ilsa Lund in Casablanca
Intelligent and confident, Maeve Wiley grew up alone and has no problem hitting you in the crotch if you disrespect her. See them in Sex Education.
Clementine Kruczynski thinks that too many guys think she's a concept, or she completes them, or she's gonna make them alive. See them in Eternal Sunshine of the Spotless Mind.
Felicity Smoak is a brilliant hacker who nonetheless becomes tongue-tied in front of attractive men. See them in DC Extended Universe.
Betty Cooper seems like a sweet girl, but she also has a dark side and can go beyond what's safe or sane. See them in Archie Comics.
Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.
John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.
Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.
Sophie Sheridan is a proud and independent woman who hardly ever looks before she leaps. See them in Mamma Mia!.
When he's not working as a detective, Lucifer is driving around in a black convertible or having one-night stands. See them in Lucifer.
A photographic memory is just one of many skills Lexie Grey brings to the table as a surgeon. See them in Grey's Anatomy.
Jane Foster is an astrophysicist who suspects the colors in the sky may be a portal to another world. See them in Marvel Cinematic Universe.