Nikki has a breakthrough and edges ever closer to the truth as they confront a key witness. Who can the team believe and, more importantly, who can they trust?
| Name | Type | Role | |
|---|---|---|---|
| Tracey Malone | Writer | ||
| Ed Whitmore | Writer | ||
| Cavan Clerkin | Guest Star | Ian Fish | |
| Matt Hermiston | Guest Star | Jan Boll | |
| ZuZuu Ellis | Guest Star | Tasmida | |
| Robert Pavey | Guest Star | Roger Gallop | |
| Arkar Hayne | Guest Star | Htin Lwin | |
| Molly Harris | Guest Star | May Lwin | |
| Sean Pertwee | Guest Star | DI John Flynn | |
| Zoe Boyle | Guest Star | Sara Sanderson | |
| Anthony Cozens | Guest Star | Kenny Tate | |
| Senora D'Mello | Guest Star | Young Rohingya Mother | |
| Tessa Wong | Guest Star | DC Alice Kirk | |
| Rocky Marshall | Guest Star | Mark Foster | |
| William Nadylam | Guest Star | Dr Emmanuel Moussa | |
| Nay Windermere | Guest Star | Zaw | |
| Julie Graham | Guest Star | Elinor Shaw | |
| Anna Kitson | Guest Star | Remote BSL Interpreter | |
| Vinna Law | Guest Star | Teenage Girl | |
| Roberto Bangura | Director |