The role of Sean Reagan in the CBS drama 'Blue Bloods' was recast from Andrew Terraciano to Mika Amonsen in the new spinoff 'Boston Blue,' to reflect a new chapter in the characters' lives and explore fresh storytelling angles, with showrunner Brandon Margolis emphasizing the organic nature of the change and the new energy brought by Mika.
'Boston Blue' is a spinoff of 'Blue Bloods' focusing on Danny Reagan in Boston, featuring a romantic relationship with Maria Baez and a recast of Sean Reagan, exploring new storylines and family dynamics while maintaining the show's core themes.
Mika Amonsen has been cast as the new Sean Reagan in the 'Blue Bloods' offshoot 'Boston Blue,' replacing Andrew Terraciano, to reflect a new creative direction for the character as he joins the Boston PD, alongside Donnie Wahlberg's Danny Reagan, who relocates to Boston to continue his law enforcement career.
CBS is launching a 'Blue Bloods' spin-off called 'Boston Blue' featuring Donnie Wahlberg’s Danny Reagan relocating to Boston with his son Sean, played by Mika Amonsen, to join the Boston Police Department, expanding the universe of the long-running family crime drama.