Doctor Who: EVERY NuWho Villain And Monster Ranked Worst To Best

Appear in: Last Christmas.

There are worse ways to go. The Kantrofarri (colloquially known as Dream Crabs) are facehuggers meets Inception's dream within a dream scenario. The slimy, scuttling parasites latch themselves onto their victim's face, drill into the side of the head, and then slowly consume the brain. Ok, this is actually one of the worst ways to go, but, fortunately, the person that's been unfortunately facehugged doesn't feel any major pain because the Dream Crab ingeniously constructs a dream state for its victim, keeping them blissfully ignorant to the horrific ordeal.

*Really wish this nagging ice cream pain would go away*