The midseason finale of Boston Blue has finally acknowledged Jack Reagan, played by Tony Terraciano, sparking curiosity about whether he will make a comeback in the form of a cameo on Blue Bloods, especially after Donnie Wahlberg’s other on-screen son was recast.

In the episode that aired on Friday, December 19, the show’s storyline revealed that Jack is currently engaged in humanitarian work with Doctors Without Borders in Africa. This reference aligns with Terraciano’s real-life pursuit of a medical degree, as he is currently in medical school working towards his Doctor of Medicine.

Executive producer Brandon Sonnier shared exclusively with Us Weekly the significance of this mention. “We are committed to keeping the universe vibrant. As an extension of the Blue Bloods world, we take this responsibility seriously,” Sonnier explained, emphasizing the importance of acknowledging the lives and developments of other characters in the series.

“It’s crucial for us to track where everyone is and how their lives are evolving outside the immediate narrative of Boston Blue,” Sonnier added. “We hope to revisit these characters and explore their journeys in the future.”

Viewers saw Jack and Sean (Andrew Terraciano) grow up in front of their eyes, so imagine their surprise when CBS ordered the Boston Blue spinoff, which focuses on Danny’s relationship with his youngest — with a twist. Before Blue Bloods premiered in October, the role of Sean was recast with newcomer Mika Amonsen.

Executive producer Brandon Margolis opened up to Us about the chances of involving Andrew in the spinoff — perhaps in a role that nods at his Blue Bloods origins.

“I love that idea. It’s really clever and I think it’s something Donnie would probably be into as well,” he teased to Us. “Because he’s the one always trying to work in New Kids on the Block references. I’m sure Donnie would be open to it. But I think that it’s a very clever idea. If the right opportunities are there, we never say no to a great idea.”

The showrunners also weighed in on finding a way to bring Jack on screen — even if that meant recasting the role.

“Is there a chance? Yes, there is a chance,” Sonnier shared. “We can tell you that there are more family members that will be joining us in the back half of the season. It is an ongoing conversation about various arcs and where we can pay homage, where we can include and where we can expand the universe. We’re huge fans of Blue Bloods and any chance that we get that we can live fully in the universe and include the Reagans is a chance that we jump to take.”

In addition to the Reagans, Boston Blue follows the Silver family, which also includes Marcus Scribner as Jonah, Gloria Reuben as Jonah’s mother, Mae, Ernie Hudson as Jonah’s grandfather, Sonequa Martin-Green as Jonah’s sister and Maggie Lawson as his stepsister, Sarah.

The midseason finale showed Mae facing backlash for looking into a crooked district attorney, which led to all the cases he worked on being called into question. As a result, her late husband Ben’s murder case was placed under review and his killer walked free.

Jonah didn’t deal well with the decision and he spent most of Friday’s episode putting himself in danger while following his father’s murderer. At the end of the finale, Jonah followed the killer into a building — only for Danny and Lena (Martin-Green) to burst in after hearing a gunshot and seeing the man dead while Jonah was covered in blood.

TV shows may come and go but characters can be replaced. In some cases, a casting change happens before fans even notice there’s a difference. Other shows poke fun at the fact that an actor has left the show and they’ve added a new person in their place. Following season 1 of Riverdale, the CW […]

“The most interesting stories to tell in that format are the most emotional ones. So it made the most sense to us that exploring grief about their father, which had been sort of a touchstone for the whole Silver family,” Margolis noted to Us. “Since the pilot, that made the most sense to us as storytellers, as the thing that should mine the emotion that would carry us over into the back half of the season. It was a really fun opportunity to explore that with Jonah’s character because Marcus is such a phenomenal actor. A lot of people don’t realize how talented he is in the dramatic sense. It was a really fun opportunity for us to write something for him to get to explore and to show off.”

Sonnier teased how Jonah seemingly being accused of murder will play out.

“We do get into the police procedure of it and it’s really about the family rallying around Jonah to get to the bottom of this crime. Also to truly put together not only what happened but why it happened to bed the larger crime at play here in the murdering of the former patriarch of the Silver family,” he added. “This is truly an ordeal for Danny, Sean, Lena, Sarah and Mae and all the rest of the family as they rally to try and save Jonah from his own actions.”

Boston Blue, which has been renewed for season 2, will continue to push boundaries, with Margolis adding, “We’re looking more into the emotional cliffhangers that can carry between seasons — rather than a procedural one. But that is the fun of this show is that these characters are so rich and have so many deep back stories that we can get to explore and put under pressure that there’s a lot of exciting opportunities.”

Boston Blue returns to CBS Friday, February 27, at 10 p.m. ET. New episodes will be streaming the next day on Paramount+.