On 16 January 2015, it was revealed that the show had gone into hiatus.

The series was described as "Harry Potter meets Doctor Who".

Gwendoline Christie would later go on to star as Captain Phasma in the "Star Wars" films.

The show was created to fill the schedule gap left by the "Doctor Who" spin-off "The Sarah Jane Adventures" when it's lead actress Elisabeth Sladen fell ill, she died in 2011. The show, however, has no relation to the "Doctor Who" universe.

Annette Badland, Dan Starkey and Brian Blessed have all appeared in "Doctor Who".

Gwendoline Christie also joined "Game of Thrones", the same time as this series.

Co-creator and former executive producer Russell T. Davies stated that the show could "easily run for ten years".

It was not considered that the series could be set in the "Doctor Who" universe.

Brian Blessed, Gwendoline Christie, Brian Herring, and Tim Rose starred in the "Star Wars" films. Brian Blessed as Boss Nass, Gwendoline Christie as Captain Phasma, Brian Herring as BB-8 and Tim Rose as Admiral Ackbar.

Brian Blessed (The Nekross King) played Prince Vultan in "Flash Gordon". King Ycranos in "Doctor Who" and Boss Nass in "Star Wars: Episode I - The Phantom Menace".