The Doctor and Sarah meet up with Bellal, who helps them escape from the Daleks and explains the origin of the City.
| Name | Type | Role | |
|---|---|---|---|
| Terry Nation | Writer | ||
| Joy Harrison | Guest Star | ||
| Julian Fox | Guest Star | ||
| Duncan Lamont | Guest Star | ||
| Roy Heymann | Guest Star | ||
| Arnold Yarrow | Guest Star | ||
| Michael E. Briant | Director |