Throughout Blue Bloods, Moynahan played Frank’s only daughter and the New York County Assistant District Attorney. Erin was married to Jack Boyle ( Peter Hermann ), with whom she shared daughter Nicky ...

Dennis Quaid is the father of three children: 33-year-old actor Jack Quaid, and 17-year-old twins Thomas Boone and Zoe Grace.

Blue Bloods' viewers are finally getting an explanation for why Donnie Wahlberg’s character, Danny, moved in the 'Boston Blue ...