1: Tom Selleck as Frank Reagan, the patriarch of the Reagan family and current NYPD Commissioner.

2: Donnie Wahlberg as Danny Reagan, an experienced Detective Sergeant and Frank's son.

3: Bridget Moynahan as Erin Reagan, an Assistant District Attorney and Frank's daughter.

4: Will Estes as Jamie Reagan, a Harvard Law School graduate turned NYPD officer and Frank's youngest son.

5: Len Cariou as Henry Reagan, Frank's father and a former NYPD Commissioner.

6: Sami Gayle as Nicky Reagan-Boyle, Erin's daughter and a student at Columbia University.

7: Vanessa Ray as Eddie Janko, Jamie's partner and eventual wife.

8: Marisa Ramirez as Maria Baez, Danny's partner and a tough detective.

9: Gregory Jbara as Garrett Moore, Frank's loyal and trusted Chief of Staff.

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