John Barrowman Jack Harkness Actor Eve Myles Gwen Cooper Actor Burn Gorman Dr. Owen Harper Actor Naoko Mori Toshiko Sato Actor Gareth David-Lloyd Ianto Jones Actor Kai Owen Rhys Williams Actor Gareth Thomas Ed Morgan Guest Star John Normington Tom Flanagan Guest Star Colin Teague Director Helen Raynor Writer Russell T. Davies Executive Producer Julie Gardner Executive Producer