deviantART user Sumerset envisions grand alliances in the Star Trek and Doctor Who universes. Leaving aside the depiction of late 24th Century Romulans and Klingons fighting alongside each other...well, they did briefly during the Dominion War, I suppose. But shouldn't all sides within each universe ally against the opposing universe?
I mean, if I saw even the Jem'Hadar fighting the Doctor, I'd support the Jem'Hadar. It's like that old proverb says: "My brother and I against my cousin. My cousin and I against any stranger." Are you a Trekkie or a Whovian? Choose your side and stick with it.
Link via io9