Donnie Wahlberg’s character from the crime procedural, Danny Reagan, will be returning along with his son, Sean Reagan. However, Andrew Terraciano, who played Sean during all 14 seasons of Blue Bloods, will no longer be portraying the character.

CBS’s upcoming “Blue Bloods” spinoff has recast Danny Reagan’s son after the same actor played the recurring role throughout the original 14 seasons. Andrew Terraciano will not return as Sean Reagan in “Boston Blue” after appearing in nearly every episode across 14 seasons as the son of Donnie Wahlberg’s character,

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