Russel T. Davies, who ruled over Doctor Who for the first years of it's revival revealed in a recent interview with the Sunday Times that there were plans for a Who/Star Trek crossover.
Speaking to the Sunday Times, the past Doctor Who showrunner said: "I would have loved to have done a Star Trek crossover. The very first year, we talked about it. Then Star Trek finally went off air.
"Landing the Tardis on board the Enterprise would have been magnificent. Can you imagine what their script department would have wanted, and what I would have wanted? It would have been the biggest battle."
Doctor Who returns to British TV screen this coming Easter weekend.