David Tennant The Doctor Actor Catherine Tate Donna Noble Actor Freema Agyeman Martha Jones Guest Star Alex Kingston River Song Guest Star Billie Piper Rose Tyler Guest Star Colin Salmon Dr Moon Guest Star Christopher Ryan General Staal Guest Star Bernard Cribbins Wilfred Mott; Jacqueline King: Sylvia Noble Guest Star Clive Standen Private Harris Guest Star Jacqueline King Sylvia Noble Guest Star Ryan Sampson Guest Star Paul Kasey Guest Star Steve Pemberton Guest Star Gareth David-Lloyd Ianto Jones Guest Star Rupert Holliday-Evans Guest Star Talulah Riley Guest Star Eve Myles Gwen Cooper Guest Star Dan Starkey Guest Star Harry Peacock Guest Star Wesley Theobald Guest Star Graeme Harper Director Euros Lyn Director Douglas Mackinnon Director Alice Troughton Director James Strong Director Colin Teague Director Russell T. Davies Writer, Executive Producer Helen Raynor Writer Steven Moffat Writer Keith Temple Writer James Moran Writer Stephen Greenhorn Writer Gareth Roberts Writer Julie Gardner Executive Producer Phil Collinson Executive Producer