The law enforcement partner to Danny Reagan (Donnie Wahlberg) has been cast for Boston Blue. Even though the long-running CBS series Blue Bloods recently ended, the franchise is set to continue with a spinoff focused on Danny. The Blue Bloods spinoff is slated to debut as part of the 2025-2026 television season, where it will build on the legacy of the original show that aired on CBS for 14 seasons and 293 episodes.