Peter Davison is on a new journey to discover everything he can about the Doctor's Companion. What exactly is a companion's role, how do you actually become a companion, what do they have in common and how have the companions changed over the years?
| Directing | Nathan Landeg | Director |
| Production | Nathan Landeg | Producer |
| Production | Jo Pearce | Executive Producer |
| Production | Steven Moffat | Executive Producer |
| Production | Brian Minchin | Executive Producer |