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 |
| Bruce Altman | ... | Mayor Frank Russo |
| Gregory Jbara | ... | Garrett Moore |
| Michael T. Weiss | ... | Sonny Malevsky |
| Nick Sandow | ... | Lt. Alex Bello |
| Nathaniel Marston | ... | Ronnie Cleary |
| Gretchen Egolf | ... | Ann Cleary |
| Sean Patrick Reilly | ... | Al Cleary |
| Sami Gayle | ... | Nicky Reagan-Boyle |
| Andrea Navedo | ... | Yolanda Gonsalves |
| Jane Dashow | ... | Neighbor |
| DTeflon | ... | ESU Cop |
| Benton Greene | ... | Officer |
| Abigail Hawk | ... | Detective Melissa Baker |
| Tijuana Ricks | ... | ESU Woman |
| Peter Riga | ... | CSU Tech. |
| Darien Sills-Evans | ... | ESU Guy |
| Andrew Terraciano | ... | Sean Reagan |
| Tony Terraciano | ... | Jack Reagan |
| Karen Gaviola | ... | Direction |
| Mitchell Burgess Robin Green Diana Son | ... | Script |