Torchwood

Owen is the only member of the Torchwood team never to have had direct contact with the Doctor. Jack has been companion to both the Ninth and Tenth incarnations, Toshiko met the Ninth Doctor while examining the space pig in 'Aliens of London' and Gwen and Ianto met the Tenth Doctor through the sub-wave network in 'The Stolen Earth'.

Peter Capaldi guest starred in 5 episodes of the series. He later went on to play the twelfth incarnation of The Doctor in 'Doctor Who'.

The show was originally supposed to be called "Complications".