| Rajesh | Anand | Slade's software engineer. |
| Gwendoline | Archer | Barry's friend. Leader of the Hercules Team. |
| Franny | Behrman | Joe's wife. |
| Joe | Behrman | Ann's husband in her false memory. |
| Sam | Behrman | Ann's son in her false memory. |
| Jee-woon | Chercover | Helena's colleague. |
| Steve | Crowder | Navy Seal. The test subject at DARPA. |
| Michael | Dillman | One of the test subjects. |
| Helena | Gray-Smith | The lead scientist who built the memory chair. Barry's ex-lover. |
| Glenn | Greenwald | The news publisher. |
| Joseph | Hart | Meghan's crush. The Chef. |
| Peter | Jennings | The news reporter. |
| Jon | Jordan | The new test subject. |
| Reed | King | The test subject. |
| Albert | Kinney | The RAND systems theorist. |
| Nelson | Mandela | Former President of South Africa. |
| Ann Voss | Peters | The girl that Barry failed to stopped the suicide of. |
| John | Poole | The chief of police. |
| Sheila | Redling | The homicide detective. |
| Daisy | Robinson | The girl that Steve murdered. |
| Timoney | Rodriguez | The test subject at DARPA. A soldier. |
| John | Shaw | The person in-charge at DARPA. |
| Marcus | Slade | The owner of the high technology company. Helena's boss. |
| Dorothy | Smith | Helena's mother. |
| Nancy | Smith | Helena's older daughter. |
| Barry | Sutton | The NYPD Detective. Protagonist. |
| Meghan | Sutton | Barry's daughter. Deceased. |
| Amor | Towels | The renowned architect of the big bend. |
| Alan | Turing | The father of computer and artificial
intelligence. |
| Dr. Paul | Wilson | Slade's project manager for the medical team. |
| Alonzo | | Helena's captor. |
| Anthony | | Julia's new husband. |
| Carla | | The bartender. |
| Dana | | Dr. Wilson's assistant. |
| DeCarlo | | Barry's co-police. |
| Jacob | | Meghan's friend. |
| Jessica | | Helena's captor. |
| John | | Helena's colleague. |
| Julia | | Barry's former wife. |
| Kevin | | Meghan's friend. |
| Lenore | | One of Slade's imaging technicians. |
| Mclachlan | | Owner of a restaurant. |
| Mindy | | Meghan's lab partner. |
| Rachel | | Helena's colleague. |
| Sarah | | Meghan's friend. |
| Sergei | | Helena's ex-lover. One of Slade's scientists. |
| Tonya | | The bartender. |
| Vince | | Barry's captor. |
