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 ...

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

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

"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.

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

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

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

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

Tom Selleck's Frank Reagan vouches for his son, Danny, to Sarah Silver in an important off-screen phone call in Boston Blue's ...

The first character we meet in Boston Blue is Sean Reagan, the son of Wahlberg's character who regularly appeared on Blue ...