Because you like Clara Oswald in Doctor Who
Queenie Goldstein is beautiful, kind, and probably currently reading your mind. See them in Fantastic Beasts and Where To Find Them.
Faith has a chip on her shoulder and a stake in her hand to slay vampires in her town. See them in Buffy the Vampire Slayer.
Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.
Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.
Cinderella will sacrifice herself to keep her family's memory alive. See them in Cinderella (Live Action).
Arwen has to choose between a life of loneliness or love and inevitible death, both rather unfortunate options. See them in The Lord of the Rings.
Warm and caring, Kitty Forman acts like a mom towards all of her kids' friends. See them in That '70s Show.
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.
A singing nanny, Mary Poppins is practically perfect in every way. See them in Mary Poppins.
A sarcastic and nosy tomboy, Stephanie Tanner is understandably not crazy about being the middle child. See them in Full House.
Rogue's touch is literally deadly, and she's trying to learn from the older mutants how to manager her powers. See them in X-Men Series.