10 Most Unexpected Doctor Who Moments

When it comes to Doctor Who you have to expect the unexpected.

Every series has been jam packed full of twists and turns that have made us question everything we thought we knew about everyone's favourite time-travelling Time Lord.

But as the years have gone by and more episodes are aired, it has become easier to spot what the big reveals are going to be. The Doctor is The Timeless Child? Pretty predictable to be honest.

And of course there have been some events that could have been epic and unexpected, had the BBC not told us about them in advance. John Simm returning as the Master for example, could well have been one of the best cliffhangers to any Who episode ever, had there not been a 'leak' months before the Series 11 premiere.

However, no matter how clever Whovians are, there are still some brilliant moments from the revival era of the show that come as a complete surprise to the audience. Twists that absolutely no-one could have foreseen coming. Scenes that changed the fabric of reality and made everyone sitting at home put on their best David Tennant voice and say: "WHAT."

Oh, and before you go any further ahead, remember, spoilers.

Series 3 is often overlooked, which is a shame because it packs some real punches. After the ongoing thread of 'Who is Harold Saxon' (more on that later), fans were left puzzled over another mystery.

How did The Face Of Boe know about The Master and Professor Yana? It seemed as if the show was going to leave that key plot point unresolved, until a scene right at the end of the finale, Last Of The Time Lords, explained all.

As fan-favourite Captain Jack Harkness departs the Tenth Doctor and Martha Jones, he tells them that during his stint with the Time Agency, he had a very interesting nickname: "The Face Of Boe they called me."

Cue shocked expressions from everyone, including The Doctor and Martha. It was such a clever reveal that stunned audiences and what it makes it better, is that all the signs were there but nobody was able to join the dots.

The Face Of Boe was said to have lived for millions of years and watched the universe grow old- and even calls The Doctor an old friend. Jack is immortal but still ages, and would know all about The Master and Yana.

For years, showrunner Russell T. Davies has stated that this all just a theory but during a recent watch-along of New Earth, he seemingly confirmed that the two are the same person.