DNA evidence linked to the health secretary’s assassination forces Nikki to face her past in the present.
| Name | Type | Role | |
|---|---|---|---|
| Ed Whitmore | Writer | ||
| Jacqueline Oceane | Guest Star | Assassin 1 | |
| Diane Axford | Guest Star | Mary Butcher | |
| Will Bowden | Guest Star | Assassin 2 | |
| Vera Horton | Guest Star | Sonia Karpov | |
| Tom Benedict Knight | Guest Star | Dan Clemence | |
| Emma Beattie | Guest Star | Alice Reynolds | |
| Gediminas Adomaitis | Guest Star | Andrei Karpov | |
| Bill Anderson | Director |