Doctor Who's Mythical Monsters

Yep, witches are actually aliens. Surprised? In Doctor Who, they are explained away as a race of aliens called Carrionites who can manipulate time and space with their vocal waves. For the uninitiated, this means spell-casting. Essentially, this is explained as a word-based science that uses certain vibrations and sounds of words to reshape reality. Why are they so ugly? Because they're not actually very human-looking. To look human, they have to cast yet another spell, which drains a lot of energy. Those able to maintain that energy actually look quite beautiful. It's when that energy begins to dissipate that you get the classic snaggle-toothed hag.

There's a theory that you go somewhere nice when you die, and to contradict that theory is the one where you stay on earth and wander aimlessly as a semi-transparent remnant of your former self. Morbid. According to Doctor Who, the latter theory is false. In fact, those ghosts you see standing at the foot of your bed before you go to sleep are actually Cybermen trying to break through the dimensional barrier in order to take over our version of Earth. Yeah, and you thought the idea of a vengeful spirit was scary. But hey, at least they can't get through and delete/upgrade you... yet.

What's is it about the undead that so morbidly fascinates us? This fascination ranges from the "Eww, a zombie!" to "Mmm, a zombie." Well, however much fascination you have for these rotting flesh-bags, you'll be happy to know that they have a place in the Whoniverse. As it turns out, the cause of these reanimations is a race of beings called Gelth, whose bodies were supposedly destroyed in the Time War. As a result of this, they slipped through the rift into 1860s Cardiff and taken up residence in the gas pipes. They are able to populate the bodies of dead humans and use them as 'vehicles.' Yummy.

Let's take a look at another example of the undead. These undead are a good deal cooler than zombies (sorry, zombies) because they have cool super-powers and are usually immortal. In the lore of the Whoniverse, "Vampire" is a label mistakenly assigned to one of several different species of aliens. One species, present at one time in Venice, are actually called Saturnynians. They are a race of fish-people who fled to Venice through cracks in space and time. When wearing perception filters, they look completely human. Like vampires, they are incredibly strong, feed on blood and hate the sun.

The other race of creatures often mistaken for vampires are the Haemovores. These are far closer to the actual vampire myth. They are super strong and able to climb perpendicular walls with ease. They are also impervious to bullets and love to drink blood. A stake through the heart's enough to take care of them. Get on that, Buffy.