In this prologue to "The Magician's Apprentice", the Doctor returns to Karn, and meets Ohlia again.
| Writing | Steven Moffat | Writer |
| Directing | Hettie Macdonald | Director |
| Production | Peter Bennett | Producer |
| Production | Brian Minchin | Executive Producer |
| Production | Steven Moffat | Executive Producer |
| Crew | Samantha Price | Post Production Supervisor |
| Costume & Make-Up | Linda Corr | Makeup Artist |
| Crew | Arran Glassar | Special Effects Technician |