Blue Bloods stars Tom Selleck (Frank Reagan), Donnie Wahlberg (Danny Reagan), Bridget Moynahan (Erin Reagan), Will Estes (Jamie Reagan), Len Cariou (Henry Reagan), Marisa Ramirez (Det. Maria Baez), and Vanessa Ray (Officer Eddie Janko).Who plays Grandpa on Blue Bloods?
Played by Len Cariou Great-grandpa of the Reagan family. Was a hardbitten Da Chief in his day; now dispenses wisdom and advice.Who stars in blue blood?
The new CBS crime drama "Blue Bloods" follows three generations of a tightly-knit family of law enforcement officers in New York City. The show stars Tom Selleck as Police Commissioner Frank Reagan, Donnie Wahlberg as Detective Danny Reagan and Bridget Moynahan as assistant district attorney Erin Reagan.