Even though 'Doctor Who' has several episodes to get through before reaching its mysterious 50th anniversary special, fans are still buzzing from the recent casting reveals that former 'Doctor Who' stars David Tennant and Billie Piper would reprise their roles as the Tenth Doctor and Rose Tyler. Now, following the recent photo reveal of Tennant and current star Matt Smith, the BBC has released another photo that includes the previously unrevealed casting of UK 'Gavin & Stacey' star Joanna Page. Find out who she might play inside!

The BBC and series show-runner Steven Moffat have been playing the 'Doctor Who' 50th anniversary special pretty close to the chest, even with the recent reveal of David Tennant and Billie Piper's return. Now, as the episode prepares to go before cameras, the BBC has added one more to the list, that of 'Gavin & Stacey' star Joanna Page.

The casting was revealed by a photo on the 'Doctor Who' Facebook page, though no description of the part has yet been revealed. Worth noting is that Stacey was originally rumored to appear in an episode back in 2011, though that appearance never came to fruition. UK thespian John Hurt will also appear in the 50th anniversary special, though no details of his role have been revealed either.

The BBC has also confirmed that 'Doctor Who' villains the Zygons will have some role in the episode, but what say you? Are you excited to see what other secrets the 'Doctor Who' 50th anniversary special holds?