Sam Ryan recruits the Lyell team to investigate the assassination of the health secretary, but Nikki is unsure whether Sam knows more than she's letting on.
| Name | Type | Role | |
|---|---|---|---|
| Ed Whitmore | Writer | ||
| Emma Beattie | Guest Star | Alice Reynolds | |
| Jacqueline Oceane | Guest Star | Assassin 1 | |
| Gaia Wise | Guest Star | Jo Reynolds | |
| Will Bowden | Guest Star | Assassin 2 | |
| Díana Bermudez | Guest Star | Rosa Hernandez | |
| Tom Benedict Knight | Guest Star | Dan Clemence | |
| Stephen Donald | Guest Star | Charles Black | |
| Bill Anderson | Director |