Younger brother of Arthur Wahlberg, Donnie Wahlberg and Robert Wahlberg. His older siblings are: Arthur Wahlberg, James Wahlberg, Debbie Wahlberg, Michelle Wahlberg, Paul Wahlberg, Tracey Wahlberg, Robert Wahlberg and Donnie Wahlberg. Robert, Donnie and Mark are from their mother's third marriage with Donald Wahlberg.
United States Marine (Veteran) Daniel Fitzgerald âDannyâ Reagan is the oldest child of Frank and Mary Reagan, and the older brother of Erin, Joe, and Jamie Reagan. Danny is an investigator of New York City's 54th Precinctâs Detective Squad, specializing in Major Crimes, and doing what needs to be done to serve justice in the fight against crime.
[The following contains spoilers for Blue Blood's season premiere.] Blue Bloods' Season 8 premiere included one hell of a shock for fans, who learned that Danny's (Donnie Wahlberg) wife Linda (Amy Carlson) is dead â and has been for quite some time. Apparently, Linda had been air-lifting one of her patients to the hospital in May when the helicopter crashed and killed her.