One big difference between Blue Bloods and Boston Blue is that Sean has been recast. Here's why a new actor stepped in for ...

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

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

Marisa Ramirez 's Det. Maria Baez made a surprise appearance in the Boston Blue premiere, but it isn't the last fans will be ...

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

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

Boston Blue' has gone to extreme lengths to appeal to the 'Blue Bloods' fans but some still question the decision to recast ...

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

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

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

(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 ...

Mika Amonsen takes over the role of Danny Reagan’s ( Donnie Wahlberg) youngest son, Sean Reagan, on the new CBS series Boston Blue, which premieres on Friday, October 17. Andrew Terraciano previously ...