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

Appear in: The Eaters of Light.

Ah, so that's what happened to the Roman Ninth Legion - the vast majority of these soldiers slaughtered and literally left a shell of who they were by light-devouring beasts that shoot bioluminescent tentacles from their mouths.

Amazingly, this isn't the most terrifying aspect of these creatures: had millions of them got through an inter-dimensional portal, they would've eaten the sun and all the stars in the universe.