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.
With the return of Blue Bloods for Season 6 this September, audiences will be treated to Danny on the heels of a serial killer suspected be hunting him in turn. Detective First Grade Danny Reagan (Donnie Wahlberg) is fresh off a case from last season that's put his family to the test. Last season the Reagans rushed to the hospital after Danny's wife, Linda (Amy Carlson) is shot, and Danny nabs the gang member responsible for her shooting.