Andrew Terraciano was replaced by Mika Amonsen—co-showrunner Brandon Margolis says it boils down to evolving character plots.

Boston Blue has gone to extreme lengths to appeal to the Blue Bloods fans but some viewers still have questions about the ...

"Boston Blue" showrunners open up about the surprise "Blue Bloods" cameo in the premiere and recasting Sean for the spinoff.

One of BOSTON BLUE’s creators is opening up about the decision to recast Sean Reagan in the BLUE BLOODS spin-off.

CBS premiered its latest police drama, Boston Blue, on October 17, 2025. The Reagan family was introduced to the new city and ...

Andrew Terraciano played Danny Reagan's son throughout the 14-year run of 'Blue Bloods,' while Mika Amonsen takes over in the ...

Boston Blue premiered with two permanent members of the Blue Bloods Reagan clan as series regulars: Danny Reagan ( Donnie ...

TV Insider has reported that Mika Amonsen will take over the role of "Danny Reagan’s (Donnie Wahlberg) youngest son, Sean ...

Brandon Sonnier and Brandon Margolis, known as “The Brandons,” co-created Boston Blue. They explained their decision to recast Sean to TV Insider.

Boston Blue' co-showrunner Brandon Margolis weighed in on why Mika Amonsen replaced Andrew Terraciano as Sean Reagan.

Boston Blue' finally explained how Donnie Wahlberg's Danny will be making the move from New York — but what does this mean ...

(L-R): Ernie Hudson as Reverend Peters, Sonequa Martin-Green as Lena Silver, Donnie Wahlberg as Danny Reagan, and Mika Amonsen as Sean Reagan in ‘Boston Blue’ | Christos Kalohoridis/CBS ©2025 CBS ...