The series was described as "Harry Potter meets Doctor Who".
On 16 January 2015, it was revealed that the show had gone into hiatus.
Annette Badland, Percelle Ascott, Dan Starkey and Brian Blessed have all appeared in "Doctor Who".
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.
Gwendoline Christie would later go on to star as Captain Phasma in the "Star Wars" films.