| In the near future, an undercover Detective Inspector gunned down and killed during a botched sting is brought back via an experimental Artificial Intelligence project. Full of glitches, he’s got to track down the person who shot him, prove himself as a cop so as not to get shut down, and save his marriage and his friendship, all with his partner Carver to boot. | 
| Name | Character | Episodes | 
|---|---|---|
| Stephen Graham | DI Roy Carver | 18 | 
| Anna Maxwell Martin | Kelly | 18 | 
| Daniel Mays | DI John Major | 18 | 
| Rosie Cavaliero | Superintendent Dennett | 18 | 
| Tracy-Ann Oberman | Police Commissioner Chalmers | 6 | 
| Steve Oram | Gilbert | 6 | 
| Amanda Payton | Dr. Parfit | 6 | 
| Precious Mustapha | Roxy Millikan | 3 |