When Boston Blue returns for season 2, there will be another familiar face: Jamie Reagan! Will Estes, who was a fan-favorite on Blue Bloods, is officially set to make a cameo on the CBS spinoff, according to a new photo shared by Donnie Wahlberg. “Welcome (back) to the Family! Jamie Reagan! aka Will Estes! #BostonBlue,” Wahlberg, 56, who played Jamie’s big brother Danny Reagan on Blue Bloods before helming Boston Blue, wrote via his Instagram Story on Friday, August 7. Estes, 47, can be spotted sitting next to Wahlberg as they dined together at a round table. Inside Blue Bl...