John Barrowman Jack Harkness Creator, 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 Murray Melvin Bilis Guest Star Paul Chequer Eugene Guest Star Indira Varma Suzie Costello Guest Star Louise Delamere Diane Guest Star Yasmin Bannerman Swanson Guest Star Elen Rhys Nancy Guest Star Togo Igawa Dr. Tanizaki Guest Star Gareth Thomas Ed Morgan Guest Star Paul Kasey Weevil Guest Star Caroline Chikezie Lisa Guest Star John Normington Tom Flanagan Guest Star Mark Lewis Jones John Ellis Guest Star Roger Ashton-Griffiths Mr. Garrett Guest Star Tom Price Andy Davidson Guest Star Brian Kelly Director James Strong Director Colin Teague Director Ashley Way Director Andy Goddard Director Alice Troughton Director James Erskine Director Chris Chibnall Writer Catherine Tregenna Writer Jacquetta May Writer Toby Whithouse Writer Paul Tomalin Writer Helen Raynor Writer Peter Hammond Writer Russell T. Davies Writer, Executive Producer Noel Clarke Writer Dan McCulloch Writer Julie Gardner Executive Producer