In Victorian England, a young woman searches for a priceless ruby and uncovers even greater mysteries.
| Name | Type | Role | |
|---|---|---|---|
| Adrian Hodges | Writer | ||
| Philip Pullman | Writer | ||
| Robert Glenister | Guest Star | Samuel Selby | |
| Tom Wu | Guest Star | ||
| Julie Walters | Guest Star | ||
| Billie Piper | Guest Star | ||
| Ramon Tikaram | Guest Star | ||
| Matt Smith | Guest Star | ||
| David Harewood | Guest Star | ||
| Sian Thomas | Guest Star | ||
| Hayley Atwell | Guest Star | ||
| Brian Percival | Director |