The Doctor’s new companion has been revealed: the actress Freema Agyeman, who plays an ill-fated and very dead member of the Torchwood technical staff in Episode 12 of Season 2.

I’m sure they’ll have a very good explanation for her turning up as the Doctor’s companion – an identical twin? Parallel universe copy? Perhaps a member of the undead?

Possibly the best Doctor Who episode ever. How could the pay-off from this 45 minute episode fail to please anyone? Even if the ultimate conclusion somehow lacks the necessary excitement or satisfaction – you can always go back and watch repeats of ‘Army of Ghosts‘ – and know that you have witnessed something good!