Twelve years after Joanna Gold famously disappeared in broad daylight on Hampstead Heath, the dress she was wearing is found in a lock-up. The team begin the hunt for her killer.
| Name | Type | Role | |
|---|---|---|---|
| Ed Whitmore | Writer | ||
| Justin Salinger | Guest Star | ||
| Paul Bazely | Guest Star | ||
| Louise Delamere | Guest Star | ||
| Justin Shevlin | Guest Star | ||
| George Calil | Guest Star | ||
| Gabriella Saunders | Guest Star | ||
| Steve Toussaint | Guest Star | ||
| Jack Ellis | Guest Star | ||
| Roger Allam | Guest Star | ||
| Danielle Lyn Saunders | Guest Star | ||
| Ralph Nossek | Guest Star | ||
| Sophie Winkleman | Guest Star | ||
| Cherie Lunghi | Guest Star | ||
| Edward Bennett | Director |