Series episode
| Donnie Wahlberg | ... | Danny Reagan |
| Bridget Moynahan | ... | Erin Reagan-Boyle |
| Will Estes | ... | Jamie Reagan |
| Len Cariou | ... | Henry Reagan |
| Tom Selleck | ... | Frank Reagan |
| Jennifer Esposito | ... | Jackie Curatola |
| Amy Carlson | ... | Linda Reagan |
| Nicholas Turturro | ... | Sgt. Anthony Renzulli |
| Robert Clohessy | ... | Sgt. Gormley |
| Noelle Beck | ... | Sue Connors |
| Austin Lysy | ... | Howard Markham |
| Sami Gayle | ... | Nicky Reagan-Boyle |
| Griffin Newman | ... | Sam Johnson |
| Neal Matarazzo | ... | Mr. Vickers |
| Julia Gibson | ... | Mrs. Vickers |
| Selenis Leyva | ... | M.E. Craig |
| Jo Armeniox | ... | Tiffani |
| Marceline Hugot | ... | Mrs. Carmichael |
| Tony Terraciano | ... | Jack Reagan |
| Andrew Terraciano | ... | Sean Reagan |
| Abigail Hawk | ... | Detective Melissa Baker |
| Marcus Carl Franklin | ... | Tom Mackey |
| Jake Boyd | ... | Marshall Huntington |
| Richard Shoberg | ... | Truscott Huntington |
| Catherine Blades | ... | Darcy |
| Matt Shingledecker | ... | Rob |
| Angel Caban | ... | Nestor |
| Andrew Halliday | ... | Hotel Manager |
| Donovan Patton | ... | Bellhop |
| Darlene Violette | ... | Maid |
| Stevie Steel | ... | Jane Doe (Betsy) |
| Derek Hedlund | ... | Rookie Officer Kowalski |
| Alexis Windsor | ... | Detective |
| Mohamed Alshami | ... | Pedestrian 2 |
| Luis Ayala | ... | Pedestrian |
| Liz Logan | ... | Reporter |
| Greg Paul | ... | Undercover Cop |
| Félix Enríquez Alcalá | ... | Direction |
| Amanda Green | ... | Script |