Nikki and the Lyell unit are called in to investigate an attack against a transgender man.
| Name | Type | Role | |
|---|---|---|---|
| Graham Mitchell | Writer | ||
| Jemima Rooper | Guest Star | Amy Marlow | |
| Lauren Drummond | Guest Star | Tamsin Nelson | |
| Olivia Chenery | Guest Star | Beth Roscoe | |
| Heather Peace | Guest Star | DI Carey Murphy | |
| Johann Myers | Guest Star | DCI Martin Cramer | |
| Stephanie Siadatan | Guest Star | Lorna Clarke | |
| David Mullen | Guest Star | Male Police Emergency Operator | |
| Tina Harris | Guest Star | Julie Brice | |
| Emma Frankland | Guest Star | Kelly Hayes | |
| Nicole Gibson | Guest Star | Evie Williams | |
| Sian Webber | Guest Star | Maeve Williams | |
| Kamari Roméo | Guest Star | Alex Edwards | |
| Raymond Waring | Guest Star | Toby Logan | |
| Alexandra Afryea | Guest Star | Female BT Operator | |
| Andrew Neil | Guest Star | Reece Williams | |
| Andrew Knott | Guest Star | Nick Marlow | |
| Paul Tylak | Guest Star | David Stein | |
| Kerry Fox | Guest Star | Susie Merrick | |
| Diarmuid Goggins | Director |