Series episode
| Donnie Wahlberg | ... | Danny Reagan |
| Bridget Moynahan | ... | Erin Reagan-Boyle |
| Will Estes | ... | Jamie Reagan |
| Len Cariou | ... | Henry Reagan |
| Tom Selleck | ... | Frank Reagan |
| Amy Carlson | ... | Linda Reagan |
| Gloria Votsis | ... | Sabrina |
| Caitlin FitzGerald | ... | Benita |
| Sami Gayle | ... | Nicky Reagan-Boyle |
| Manley Pope | ... | King |
| Kieran Campion | ... | Vince Walker |
| Richard Short | ... | Lemon |
| Gary Basaraba | ... | Jimmy Burke |
| Carrie Yaeger | ... | Sabrina's Lawyer |
| Andrea Navedo | ... | Lydia Gonsalves |
| Jennifer Esposito | ... | Jackie Curatola |
| Tony Terraciano | ... | Jack Reagan |
| Andrew Terraciano | ... | Sean Reagan |
| Erik Heger | ... | Guy |
| Arianna Hoeppner | ... | Girl |
| Taylor Gildersleeve | ... | Girl |
| Josh Tower | ... | Cop |
| Rob Leo Roy | ... | Vince's Attorney |
| Li Jun Li | ... | Nicka |
| Christopher Mann | ... | Deputy Commissioner of Ops |
| Joan Rosenfels | ... | Mrs. Griffin |
| Mark Hattan | ... | Detective |
| Sharri Jones | ... | Model |
| Sheena Colette | ... | Celebrity |
| Alex Ziwak | ... | Undercover Detective |
| Alex Zakrzewski | ... | Direction |
| Brian Burns | ... | Script |