After relaxing at a Roman villa the Doctor is mistaken for a murdered lyre player and targeted by an assassin. Meanwhile, Ian and Barbara are captured by slave traders.
| Name | Type | Role | |
|---|---|---|---|
| Dennis Spooner | Writer | ||
| Margot Thomas | Guest Star | ||
| Derek Sydney | Guest Star | ||
| Nicholas Evans | Guest Star | ||
| Bart Allison | Guest Star | ||
| Dennis Edwards | Guest Star | ||
| Christopher Barry | Director |