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CBS's Boston Blue, the official spin-off series to Blue Bloods, finally has a premiere date and will arrive on the network on October 17, 2025.
Banking on the success of the parent series, which ran for fourteen seasons and concluded in December 2024, the spin-off series will be led by Donnie Wahlberg, who played Danny Reagan in Blue Bloods.
The spin-off series will follow Danny as he moves to the new city and joins the Boston Police Department, and crosses paths with another law enforcement family in the Peters-Silver, who make up the majority of the Boston Blue cast.
Here is the complete and confirmed guide to the Boston Blue cast.
Boston Blue cast and character guide
1) Donnie Wahlberg as Danny Reagan
Donnie Wahlberg has played the character of Danny Reagan in Blue Bloods since its premiere and has remained an important character in the franchise.
While the Blue Bloods finale did not tease any move for Danny to Boston, the spin-off series will see him taking a position with the Boston Police Department, where he will get a new partner and will start life afresh.
In addition to Blue Bloods, Wahlberg is best known for his performances in Band of Brothers and Runaway.
2) Sonequa Martin-Green as Lena Silver
Lena Silver's family members make up the majority of the Boston Blue cast, as she is the 'eldest daughter of a prominent law enforcement family' and will also be Danny's new partner in the Boston Police Department.
In addition to Wahlberg, Martin-Green will lead the spin-off series and the actress was excited to join this new family, as she told Variety in an interview:
''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...''
Martin-Green is best known for her performances in Star Trek: Discovery and The Walking Dead.
3) Maggie Lawson as Sarah Silver
Lawson has joined the Boston Blue cast as Sarah Silver, Lena's stepsister and a superintendent of the BPD. According to CBS, she is "well aware of the tightrope she can walk sometimes between her job and her family'' and is very decisive and strong-willed.
Lawson has previously starred in Inside Schwartz, Outmatched and Lethal Weapon.
4) Ernie Hudson as Reverend Peters
Ernie Hudson has joined the Boston Blue cast as Reverend Peters, Lena's grandfather. As his name suggests, Peters is a pastor with the Boston Baptist church and also the patriarch of this law enforcement family.
Hudson is best known for his performances in Quantum Leap, The Family Business and Grace and Frankie.
5) Gloria Reuben as Mae Silver
The strong matriarch of the Silver family, Reuben is an important Boston Blue cast member, who plays Mae Silver. Mae, Lena's mother and Sarah's stepmother, is a District Attorney in Boston.
After her husband, who was a judge, was murdered on the courthouse steps, she took control of her law enforcement family and supported her children in choosing a career with the BPD. In addition to Lena and Sarah, Mae's son Jonah is also a rookie cop.
Gloria Reuben has previously starred in City on a Hill, Elsbeth, Cloak & Dagger and Blindspot.
6) Marcus Scribner as Jonah Silver
Reminiscent of Jamie Reagan from Blue Bloods, Marcus Scribner will star as Jonah Silver in Boston Blue, the youngest in the Silver family. Lena's brother and Mae's son, Jonah, is a rookie police officer with the BPD.
Marcus Scribner has previously starred in Dragons: The Nine Realms, Star Wars: Young Jedi Adventures and She-Ra and the Princesses of Power.
7) Mika Amonsen as Sean Reagan
The latest addition to the Boston Blue cast, Mika Amonsen, will play the character of Sean Reagan, Danny's youngest son. Sean is already a patrolman in Boston, and his father's recent move will give them much bonding time.
Danny and Sean will navigate their personal and professional loves together and the spin-off aims to recreate the magic of family by bringing Danny's youngest son into the fold.
Mika Amonsen has previously starred in Thanksgiving, Pachinko and The Republic of Sarah.
Boston Blue will premiere on CBS on October 17, 2025.
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