Because you like Mrs. Hudson in Sherlock

Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.

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.

Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.

Whether it's a fire or a pit of lions, there's almost no predicament that Violet Baudelaire can't get her and her siblings out of. See them in Lemony Snicket's A Series of Unfortunate Events.

K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.

Anya Jenkins has a real harsh bark to go with her demonic bite. See them in Buffy the Vampire Slayer.

Bobby Singer is a redneck ghost hunter, but all he wants to do is retire to the junk yards of South Dakota. See them in Supernatural.

Shawn Hunter may be a bit of a rebellious bad boy, but he has a heart that's pure gold. See them in Boy Meets World.

Effie Trinket is utterly enamored with all things fashion, make-up, and style. See them in The Hunger Games .

Privileged young Bruce's childhood was nearly perfect. Now, his life is anything but. See them in Gotham.

Chloe Decker's case should be open-and-shut. But something seems to be troubling her, something about Palmetto Street. See them in Lucifer.

A bloodsucker, Carlisle Cullen is actually more likely to give you a blood infusion. See them in Twilight.