The Doctor qualifies too, as an in-universe example. The aforementioned memetic badass Dalek is from a race who tells legends about him.
Doctor: Everyone has nightmares. Even monsters from under the bed have nightmares. Don't you, monster?
Doctor: Do you know what they call me, in the ancient legends of the Dalek homeworld? The Oncoming Storm.
- According to the books, it's better then that. The Daleks - the most dangerous evil thing in the known universe, the thing that humanity until the end of time itself considers worse then the Devil - call the Doctor "The Bringer of Darkness".
- From "Forest of the Dead":
Doctor: I'm The Doctor and you're in the biggest library in the Universe. Look me up.
- From "The Family of Blood":
Tim Latimer: "He's like fire and ice and rage. He's like the night, and the storm in the heart of the sun. He's ancient and forever. He burns at the center of time and he can see the turn of the universe. And... he's wonderful."
- From "The Pandorica Opens":
Doctor: There was a goblin, or a trickster... Or a warrior... A nameless, terrible thing, soaked in the blood of a billion galaxies. The most feared being in all the cosmos. And nothing could stop it or hold it, or reason with it. One day it would just drop out of the sky and tear down your world.
- Also from "The Pandorica Opens":
Doctor: Look at me! No plan, no backup, no weapons worth a damn. Oh, and something else I don't have. Anything. To. Lose! So, if you're sitting up there in your silly little spaceship with all your silly little guns, and you've got any plans on taking the Pandorica tonight, just remember who's standing in your way. Remember every black day I ever stopped you, and then, AND THEN...do the smart thing. Let somebody else try first. (The Enemy Armada retreats)
- From "The Wedding of River Song":
: Imagine you were dying and a long way from home and in terrible pain. And just when you think it couldn't get any worse, you look up and see the face of the devil himself. [Beat
] Hello, Dalek.