Details have now emerged for another upcoming Doctor Who documentary that will be broadcast on BBC Three later this month. The documentary will be entitled Doctor Who Greatest Moments: The Companions and will take a look back at some of The Doctor's companion's most memorable moments from the history of Doctor Who. Doctor Who Greatest Moments: The Companions will feature David Tennant who plays The Tenth Doctor, Billie Piper who plays Rose Tyler, Freema Agyeman who plays Martha Jones, Catherine Tate who plays Donna Noble and John Barrowman who plays Jack Harkness. The documentary is the second in a three-part series and details regarding the first documentary of the series, Doctor Who Greatest Moments: The Doctor, can be found by clicking here in an older post. Doctor Who Greatest Moments: The Companions will be broadcast on BBC Three on Thursday the 27th of August at 8.00pm and a final reminder for the documentary will be posted here, on The Gallifrey Vortex, on it's broadcast date.