Boston Blue is continuing to expand the Blue Bloods universe amid the 2025 TV schedule, nearly a year after the parent show ended. While the new series sees Donnie Wahlberg reprising his role as Detective Danny Reagan and has featured appearances by Bridget Moynahan and Marisa Ramirez in their respective Blue Bloods roles, Danny’s youngest son, Sean, is played by a new actor. Now, that star is addressing the backlash he's faced over the recast.
Andrew Terraciano portrayed Sean amid all 14 seasons of Blue Bloods, so it was a surprise when it was announced that Mika Amonsen would take over the role on Boston Blue. Showrunners Brandon Margolis and Brandon Sonnier previously shared why the recast happened, revealing that they wanted to pick up the story on Boston in progress and show that some time had passed since the series finale of the OG show.
