Many, many, many years ago, when I was a kid, I entered a Blue Peter 'design an enemy' for Dr Who competition and my enemy was basically a Minotaur. OK - I pinched the idea from Minoan/Greek myth, but still!
Was that the one back in the sixties, Tony? The one with the Aqwaman, the Hypnotron, and the Steel Octopus?
Not that a minotaur hasn't been used in Doctor Who
before, Tony. The Minotaur itself was used in The Mind Robber
and The Time Monster
(and the guy who played it in the latter was none other than Dave 'Darth Vader' Prowse). And I also mentioned The Horns of Nimon
. The God Complex
shares quite a bit with that one (minotaur-like aliens setting themselves up as gods, but feeding on life energy and using faith to dupe others, and living in an ever-shifting maze).
I also reckon that Whithouse has read the psychological horror novel House of Leaves
, which has a similar concept: a house with shifting interior dimensions that becomes effectively a maze, and which may actually have a minotaur in it.
Actually, I read an interesting theory. We don't see the Doctor's fear, though it is implied to have something to do with the TARDIS' cloister bell. Either his greatest fear is the TARDIS dying, or maybe (as it is implied that he actually sees a person), his greatest fear is the Valeyard, his evil personified.
"What have you been doing since you stole that antique TARDIS of yours, since you first landed on Skaro? Shouting 'Look at me!!! I'm not fighting a war!', while you battle the Daleks all the way through space and time."