Because you like Madame Vastra in Doctor Who
Ultron is security software turned evil mastermind. See them in Marvel Cinematic Universe.
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
The fearless bodyguard of Rick Flag, Katana will ruthlessly kill her enemies, trapping their souls in her sword. See them in DC Extended Universe.
Henry Mills is an idealistic young boy with the heart of the truest believer. See them in Once Upon a Time.
Pure charm, flirty and fashionable, Lando Calrissian will make sure to get the job done when necessary. See them in Star Wars Series.
Alex Danvers is a brilliant engineer tasked with alien threats, and one of those aliens is her adopted sister Supergirl. See them in Supergirl.
Donatello might come off as a tad nerdy, but don't let his geekiness fool you. He's a trained ninja and a skilled fighter. See them in Teenage Mutant Ninja Turtles.
White Witch's heart is as frozen as the land she rules. See them in The Chronicles of Narnia.
Few can match this dwarf when it comes to self-confidence. Gimli is as eager for a good time as he is for a fight. See them in The Lord of the Rings.
Despite the war-torn world around him, Mal Reynolds still holds onto the shred of hope that life can be more than just living another day. See them in Firefly.
Jyn Erso is a rebellious criminal tasked with stealing the blueprint to the Death Star to find its fatal flaw before it destroys the planet. See them in Rogue One.