TV series
London police detectives Cassie Stuart and Sunny Khan investigate historic cold cases involving missing persons, murder and long-hidden secrets.
Streaming, rental and purchase options
Checked Jul 22, 2026
Unforgotten is available to stream on Prime Video in United States. You can also rent or buy it from Google Play, Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
London police detectives Cassie Stuart and Sunny Khan investigate historic cold cases involving missing persons, murder and long-hidden secrets.
Choose an episode, then use the watch options above for the show.
Episode 1
When a severed leg is discovered in a bricked-up chimney flue the team get to work identifying the victim and cause of death. Cassie’s replacement on the force, DCI Jess James, has a rocky start as she clashes with a grieving Sunny.
Directed by Andy WilsonWritten by Chris LangGuest stars Andrew Lancel, Kate Robbins, Daniel Boys, Zephryn Taitte, River Archer, Hubert Hanowicz, Anna Benton, Nabil Elouahabi
Episode 2
The team work to identify the body found in the chimney flue as forensics reveal the cause of death. Jess and Sunny visit the victim’s mother to break the devastating news. They find the pair had a tumultuous relationship.
Guest stars Andrew Lancel, Kate Robbins, River Archer, Nabil Elouahabi, Mark Frost, Michelle Bonnard, Hebe Beardsall, Claire Ganaye
Episode 3
The victim’s turbulent past comes to light. While Sunny takes a trip to Paris and Jess drops in on an unsuspecting Lord, the pair continue to butt heads.
Guest stars River Archer, Hubert Hanowicz, Mark Frost, Michelle Bonnard, Nana Agyeman-Bediako, Claire Ganaye, Gráinne Keenan, Magnus Bruun
Episode 4
Sunny and Jess’s personal lives go from bad to worse while they struggle to keep focused. Meanwhile, the suspect list grows and a mother and son are put under the microscope.
Guest stars Kate Robbins, River Archer, Hubert Hanowicz, Nabil Elouahabi, Mark Frost, Michelle Bonnard, Hebe Beardsall, Claire Ganaye
Episode 5
Despite the trouble in their personal lives, Sunny and Jess attempt a reset as they follow the clues in the case.
Guest stars Andrew Lancel, Kate Robbins, Hubert Hanowicz, Mark Frost, Michelle Bonnard, Hebe Beardsall, Maria Friedman, Claire Ganaye
Episode 6
Can Sunny, Jess and the team bring the clues in the case together and unravel the secrets to solve it?
Guest stars Andrew Lancel, Kate Robbins, River Archer, Mark Frost, Hebe Beardsall, Maria Friedman, Magnus Bruun, Mark Oosterveen
Episode information updated Jul 24, 2026
Nicola WalkerDCI Cassie Stuart
Sanjeev BhaskarDS Sunil 'Sunny' Khan
Sinéad KeenanDCI Jessica 'Jessie' James
Jordan LongDS Murray Boulting
Lewis ReevesDC Jake Collier
Pippa NixonDC Karen Willetts
Georgia MackenzieDr. Leanne Balcombe
ITV1United Kingdom
