David Tennant The Doctor Actor Freema Agyeman Martha Jones Actor Jessica Hynes Guest Star Thomas Brodie-Sangster Guest Star Harry Lloyd Guest Star Peter Bourke Mr Chambers Guest Star Lauren Wilson Lucy Cartwright Guest Star Rebekah Staton Guest Star Tom Palmer Guest Star Gerard Horan Guest Star Matthew White Guest Star Derek Smith Guest Star Pip Torrens Guest Star Charles Palmer Director Paul Cornell Writer Julie Gardner Executive Producer Russell T. Davies Executive Producer