Andrew Terraciano will not return as Sean Reagan in the spinoff, and Mika Amonsen will now take his place in 'Boston Blue' ...

Sean is set to appear in the first spinoff of the show after it ended last year, but Terraciano is not returning to the role ...

The Reagan family may be returning to screens for Boston Blue, but at least one member will look a little different. Ahead of ...

Mika Amonsen will play Sean Reagan in the 'Blue Bloods' spinoff, 'Boston Blue,' a role previously played by Andrew Terraciano ...

CBS caused a stir earlier this year when it revealed that Boston Blue, a spin-off of Blue Bloods, was in the works.

Boston Blue recasting Sean is a major change that is a good news/bad news situation for fans of the original Blue Bloods ...

Danny Reagan’s youngest son Sean will look a little different when he appears alongside his dad on CBS’ upcoming drama series ...

The forthcoming CBS procedural Boston Blue may be a spin-off from Blue Bloods, but it's still making a distinct departure ...

Throughout the 14 seasons of 'Blue Bloods,' through the series finale, the character was played by Andrew Terraciano.

As for Amonsen, he has previously starred in an episode of Apple TV+'s Pachinko, Suits and Designated Survivor, as well as ...

Mika Amonsen will replace Andrew Terraciano, who played Sean Reagan throughout the 14-season run of "Blue Bloods." ...

Boston Blue made a shocking cast change for the role of Danny Reagan's son, Sean. Mika Amonsen was added to the cast of the ...