Arriving on the techno-Ruritanian world of Tara, Romana easily obtains the Fourth Segment. Getting off the planet, however, isn't going to be quite so easy...
| Name | Type | Role | |
|---|---|---|---|
| David Fisher | Writer | ||
| Lois Baxter | Guest Star | ||
| Neville Jason | Guest Star | ||
| Paul Lavers | Guest Star | ||
| Michael Hayes | Director |