When the Doctor attempts to return Ian and Barbara to their own time, the TARDIS actually lands in 18th-century France during the French Revolution.
| Name | Type | Role | |
|---|---|---|---|
| Dennis Spooner | Writer | ||
| Peter Walker | Guest Star | ||
| Neville Smith | Guest Star | ||
| James Hall | Guest Star | ||
| Ken Lawrence | Guest Star | ||
| Laidlaw Dalling | Guest Star | ||
| Robert Hunter | Guest Star | ||
| Henric Hirsch | Director |