Ask a question in the box below, or search using the box above.

As you enter your question, our massive, TARDIS-sized computers will search out other similar questions. So be sure to check the list that pops up before asking your question. Once you've decided that your question has not been asked before, push the not-so-threatening blue button below.

If you want to ask questions needing speculation or people's opinions, please do it in our Watercooler forum, not here. The main Q&A space is for questions with definitive factual answers. Thanks!

To avoid spoilers in the main Q&A section, please do to not post information about stories that have not been released in the UK, or ask for information about stories that have not yet aired there.

This has never been revealed. "Forest of the Dead" has the Tenth Doctor state that there is only one circumstance in which he could tell her his real name, but exactly what that is has yet to be revealed. It is not due to his marriage to her in "The Wedding of River Song" as he does not actually tell her his name, but rather he reveals that he is actually inside a Teselecta duplicate.