Because you like Kara "Starbuck" Thrace in Battlestar Galactica

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

With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.

Academics weren't his strong suit. Luckily, Jesse Pinkman's street smarts are a cut above the rest. See them in Breaking Bad.

Manipulative, conniving, and ruthless, Mr. Gold is enigmatic no matter what world he's in. See them in Once Upon a Time.

A genetic experiment engineered to be the perfect assassin, Agent 47 is cold, professional, and lethal. See them in Hitman.

Carol Peletier's credo: your strength comes from who you are, not who you used to be. See them in The Walking Dead.

Success for Eggsy Unwin means joining Kingsman, and failure could mean death. See them in Kingsman: The Secret Service.

Egon Spengler prefers collecting spores, molds, and fungus to interacting with people. See them in Ghostbusters.

Give in to the dark side with vampire Lestat; it's more fun. See them in Interview with the Vampire: The Vampire Chronicles.

A debonair spy, Harry Hart is the epitome of a gentleman, even when he calmly takes down multiple men with a militarized umbrella. See them in Kingsman: The Secret Service.

The only thing standing between Rocky Balboa and glory is the person facing him in the boxing ring. See them in Rocky Series.

Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.