Discover
As the Sontarans choke the Earth, the Doctor and UNIT battle to keep both Martha and Donna alive.
Original Release
05/03/2008
US Release
05/30/2008
Cast
| Name | Character |
|---|
| David Tennant | The Doctor |
| Catherine Tate | Donna Noble |
| Freema Agyeman | Martha Jones |
| Billie Piper | Rose Tyler |
| Bernard Cribbins | Wilfred Mott |
| Jacqueline King | Sylvia Noble |
| Ryan Sampson | Luke Rattigan |
| Rupert Holliday-Evans | Colonel Mace |
| Christopher Ryan | General Staal |
| Dan Starkey | Commander Skorr |
Directors
Writers
Creators
Cast
| Name | Character |
|---|
| David Tennant | The Doctor |
| Catherine Tate | Donna Noble |
| Freema Agyeman | Martha Jones |
| Billie Piper | Rose Tyler |
| Bernard Cribbins | Wilfred Mott |
| Jacqueline King | Sylvia Noble |
| Ryan Sampson | Luke Rattigan |
| Rupert Holliday-Evans | Colonel Mace |
| Christopher Ryan | General Staal |
| Dan Starkey | Commander Skorr |
| Clive Standen | Private Harris |
| Wesley Theobald | Private Gray |
| Christian Cooke | Ross Jenkins |
| Meryl Fernandes | Female Student |
| Leeshon Alexander | Male Student |
| Biddy Hodson | Captain Price |
| Kirsty Wark | Kirsty Wark |
| Lachele Carl | US Newsreader |
| David A. Bowen | UNIT Soldier |
| Marcus Elliot | HQ Soldier |
Producers
| Name | Role |
|---|
| Phil Collinson | Executive Producer |
| Russell T. Davies | Executive Producer |
| Julie Gardner | Executive Producer |
| Susie Liggat | Producer |
