The tombs are revealed to be a trap. The Cybermen have risen from their centuries-long hibernation and are intent on converting the humans into a new race of Cybermen.
| Name | Type | Role | |
|---|---|---|---|
| Gerry Davis, Kit Pedler | Writer | ||
| George Pastell | Guest Star | ||
| Ronald Lee | Guest Star | ||
| Aubrey Richards | Guest Star | ||
| Hans De Vries | Guest Star | ||
| George Roubicek | Guest Star | ||
| Kenneth Seeger | Guest Star | ||
| Shirley Cooklin | Guest Star | ||
| Charles Pemberton | Guest Star | ||
| Morris Barry | Director |