Because you like Thomas J. Whitmore in Independence Day
Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.
Alex Russo desperately wants to keep her magic – after all, things are so much easier when you can just wave a wand. See them in Wizards of Waverly Place.
Jo Wilson is an accomplished doctor who's getting over her past. See them in Grey's Anatomy.
Iris West is a barista and blogger determined to expose a secret. See them in DC Extended Universe.
Arizona Robbins loves being a pediatric surgeon, and the cute orthopedic surgeon downstairs makes coming into work worth her while. See them in Grey's Anatomy.
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.
Toby Cavanaugh has trouble avoiding being manipulated. See them in Pretty Little Liars.
Although she is underestimated, Lagertha never fails to prove her worth as both a warrior and a mother. See them in Vikings.
Tempestuous and talented, Claire Randall is a woman with a passionate heart and a quick mind. See them in Outlander.
Ciri had a princess upbringing, and some of the facts of common people's lives are a mystery to her. See them in The Witcher.
Chuck Bartowski is a sweet, laid-back electronics store/top secret government employee. See them in Chuck.
Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.