- The Reagan Family: Click to expand. Commissioner Frank Reagan, Former Commissioner Henry Reagan, Detective First Grade Danny Reagan, Officer Jamie Reagan, ADA Erin Reagan, Nicole "Nicky" Reagan-Boyle, Linda Reagan, Jack and Sean Reagan, Detective Joe Reagan, Margaret "Mary" Reagan, Officer Edit "Eddie" Reagan (nee Janko)
- The NYPD: Click to expand. Sgt. Anthony Renzuli, Detective Jackie Curatola, Detective First Grade Abigail Baker, Detective First Grade Maria Baez, Officer Vincent Cruz, Deputy Commissioner of Public Information Garrett Moore, Lieutenant Sidney Gormley, Dino Arbogast
- Recurring Characters: Click to expand. Mayor Carter Poole, Manhattan District Attorney Amanda Harris, Manhattan DA Robert Mccoy, Noble Sanfino, Inspector General Kelly Peterson, Reverend Darnell Potter, Javier "Javi" Baez, Jack Boyle
Characters / Blue Bloods
- The Reagan Family: Click to expand.
- The NYPD: Click to expand.
- Recurring Characters: Click to expand.