Companion (Doctor Who) companions too have been depicted in the revived era, such as Jo Grant (n/k/a Jo Jones)'s grandson Santiago Jones; and Sarah Jane Smith's parents, adopted son Luke Smith, adopted daughter Sky Smith, and alternate timeline fiancé Peter Dalton; and Alistair Lethbridge-Stewart's daughter Kate Stewart. Another change in the revived era is the depiction of many companions' pre-Doctor lives, particularly their childhoods; no companion was so depicted in the classic era, aside from John Benton being temporarily 'de-aged' by The Master. Companions Rose Tyler, Mickey Smith, Adelaide Brooke, Amy Pond, Rory Williams, River Song and Clara Oswald have all been portrayed
The Crystal of Cantus Doctor Who audio adventure "Sword of Orion". It's suggested that the creature is still trapped inside Irving Braxiatel's head which may explain his behaviour. The story features the culmination of events leading back to "The Mirror Effect". It's implied that the Crystal of Cantus is actually from the Coronet of Rassilon. The Crystal of Cantus The Crystal of Cantus is a Big Finish Productions audio drama featuring Lisa Bowerman as Bernice Summerfield, a character from the spin-off media based on the long-running British science fiction television series "Doctor Who". Bernice, Jason and Irving Braxiatel visit the planet of Cantus to