Great news for fans eagerly awaiting the Blue Bloods spinoff, Boston Blue! The talented Sonequa Martin-Green (Star Trek: Discovery, The Walking Dead) has officially joined the cast and will star opposite Donnie Wahlberg in the upcoming series. Martin-Green will play Detective Lena Peters, a Boston PD detective who becomes Danny Reagan’s (Wahlberg) partner as he transitions from the NYPD to Beantown. Adding an intriguing layer to the dynamic, Lena is described as the eldest child in a prominent Boston law enforcement family, mirroring Danny’s own background within the Reagan clan.
The casting announcement was made at a CBS press briefing in Los Angeles, where both Wahlberg and Martin-Green expressed their enthusiasm for the new series and their on-screen partnership. Martin-Green shared her excitement about joining the Blue Bloods universe, stating, “We love the Reagans. We have all loved the Reagans for so long. And I feel that we’ll love the Peters too. I’m super excited for this partnership, and to be back in a CBS family.” Wahlberg, who is also an executive producer on Boston Blue, emphasized that Martin-Green was the “only choice” for the role of Lena Peters, highlighting the significance of her casting for the show’s success.
The premise of Boston Blue centers on Danny Reagan’s move to the Boston Police Department and his partnership with Lena Peters. As a New Yorker through and through, Danny will likely navigate a new city and new policing styles, potentially creating some interesting clashes and learning opportunities as he works alongside Lena, who is deeply rooted in Boston’s law enforcement culture. The series aims to explore not only their partnership but also the dynamics of Lena’s own prominent police family, offering a fresh perspective within the established Blue Bloods world.
Boston Blue is set to premiere on CBS in January 2026, taking over the Friday 10 PM EST timeslot. With the addition of Sonequa Martin-Green as Danny’s partner, the stage is set for an exciting new chapter in the Blue Bloods saga, promising a blend of familiar themes and fresh, engaging storylines in the vibrant city of Boston.
