Boston Blue filming is officially underway, and with it comes news of a surprising Reagan recasting.

Mika Amonsen has been cast as Sean Reagan on Boston Blue opposite Donnie Wahlberg. On Blue Bloods, Sean was played by Andrew ...

CBS’s upcoming “Blue Bloods” spinoff has recast Danny Reagan’s son after the same actor played the recurring role throughout ...

Blue Bloods viewers are finally getting an explanation for why Donnie Wahlberg’s character, Danny Reagan, relocated to Boston ...

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 ...

Mika Amonsen will play Sean Reagan in the 'Blue Bloods' spinoff, 'Boston Blue,' a role previously played by Andrew Terraciano ...

Mika Amonsen will replace Andrew Terraciano, who played Sean Reagan throughout the 14-season run of "Blue Bloods." ...

Boston Blue, the Blue Bloods spinoff, recast Sean Reagan, Danny Reagan's son, with Mika Amonsen replacing Andrew Terraciano in a shocking twist ...

Boston Blue spoilers and updates reveal Danny Reagan’s (Donnie Wahlburg) son Sean Reagan (Andrew Terracino) has been recast in the new show. Here’s everything we know about the new Blue Bloods spinoff ...

CBS’ upcoming Blue Bloods offshoot has added another Reagan — though he will look a bit different when he shows up. A ...

Mika Amonsen ( Thanksgiving) has joined the show’s cast as Sean Reagan, the youngest son of series lead Donnie Wahlberg’s ...

Boston Blue, the much-awaited spin-off of Blue Bloods, has finally set its premiere date on CBS. The show continues the ...