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

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

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

Mika Amonsen is a Canadian actor of Thanksgiving fame who replaced Andrew Terraciano as Sean Reagan on Boston Blue Season 1 ...

Discover Boston Blue Season 1, where Danny Reagan navigates Boston PD, family dynamics, and high-stakes investigations while ...

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

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

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

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

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

The Boston Red Sox have been using "Sweet Caroline" as a rally song since 1997, when Fenway employee Amy Tobey spontaneously ...