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

It's unknown if there will be other recastings or reprisals down the line as Boston Blue continues, but fans do have 14 ...

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 ...

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

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

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

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

The leader of Canada’s most populous province posted remarks by former U.S. President Ronald Reagan on social media on Friday ...

(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 ...