After Martha Jones parts company with the Doctor, his TARDIS collides with another, and he comes face to face with one of his previous incarnations.
| Directing | Graeme Harper | Director |
| Writing | Steven Moffat | Writer |
| Production | Phil Collinson | Producer |
| Production | Russell T Davies | Executive Producer |
| Production | Julie Gardner | Executive Producer |
| Sound | Murray Gold | Music |
| Camera | Rory Taylor | Director of Photography |
| Editing | Ceres Doyle | Editor |
| Art | Edward Thomas | Production Design |
| Art | Arwel Jones | Art Direction |
| Costume & Make-Up | Louise Page | Costume Design |
| Costume & Make-Up | Morag Smith | Makeup Artist |
| Costume & Make-Up | Barbara Southcott | Makeup Designer |
| Sound | Paul McFadden | Sound Editor |
| Sound | Ray Parker | Sound Recordist |
