Henry Reagan (Len Cariou) had struggled with retiring after spending his career on the force, especially since he was surrounded by a family of police officers. He was instead used as more of a ...

Frank’s father, Henry Reagan (Len Cariou), have been central to the show alongside Frank’s children: daughter Erin Reagan (Bridget Moynahan) and sons Danny (Donnie Wahlberg) and Jamie Reagan ...

Frank's father, Henry Reagan (Len Cariou), have been central to the show alongside Frank's children: daughter Erin Reagan (Bridget Moynahan) and sons Danny (Donnie Wahlberg) and Jamie Reagan (Will ...