Len Cariou is set to make a return to the screen as he reprises his role in the upcoming episode of “Boston Blue,” a spinoff of the popular CBS series “Blue Bloods.” The veteran actor, known for his portrayal of retired NYPD commissioner Henry Reagan, is expected to appear in a new episode scheduled for release in April.
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In “Boston Blue,” Cariou’s character is the grandfather of Donnie Wahlberg’s character, Danny Reagan. During a recent event for the premiere of his latest show, “American Classic,” on February 25, Cariou, at 86 years of age, shared his enthusiasm about working with Wahlberg on the new series. He expressed, “It was fun,” illustrating the enjoyable atmosphere on set, and added how pleasant it was to meet the actor’s character’s new son, Sean Reagan.

The anticipation for Cariou’s appearance was heightened during a panel at the Television Critics Association event in January, when Wahlberg announced that the beloved character would be making a guest return. He remarked, “Grandpa Reagan’s going to be showing up, and [Danny’s sister] Erin’s going to show up again.” This confirmation was later supported by a representative for the series, generating excitement among fans of the original show.
The build-up to the new episode intensified further when a glimpse of Cariou was revealed in the midseason trailer for “Boston Blue” released in February. In the short clip, viewers can catch a glimpse of Henry Reagan engaging in a case discussion with Danny, Detective Lena Silver, and her mother, District Attorney Mae Silver. In the scene, Cariou’s character quips, “So, what do we got?” which sparks a light-hearted moment between the characters, highlighting the comedic chemistry between them.
“Boston Blue” made its premiere on CBS in October 2023, featuring Danny Reagan as he relocates to Boston to be near his son, Sean, who has just joined the Boston Police Department as a rookie officer. Throughout the show, Danny encounters various cases while building relationships with the Silver family, who serve in law enforcement, reminding him of his own team back in New York.
After airing its midseason finale in December, “Boston Blue” took a short break before returning on February 27. The series continues to broadcast new episodes every Friday at 10 p.m. ET, drawing viewers with fresh cases and the evolving dynamics of the characters involved.
As fans eagerly await Len Cariou’s appearance in “Boston Blue,” the show’s intergenerational storytelling offers a nostalgic yet modern twist, allowing viewers to reconnect with characters they have come to love. The blending of family ties and crime-solving once again positions this spinoff as a must-watch for loyal followers of the “Blue Bloods” franchise.
With its unique storyline and the involvement of seasoned actors like Cariou, “Boston Blue” appears to be paving its path to becoming a staple in the crime drama genre on television. The enthusiasm from both the cast and the audience suggests that the series is well on its way to engaging viewers with yet another compelling narrative.
