The upcoming Blue Bloods spinoff, Boston Blue, is already making waves—and not just for what it includes, but for who it leaves out. Several beloved characters from the original series will not be returning, and fans are eager to understand why. While Donnie Wahlberg’s Danny Reagan takes center stage, the absence of familiar faces is raising eyebrows.

Tom Selleck, the heart of the Reagan family as Commissioner Frank Reagan, is notably missing. Despite years of leading the series with quiet strength, sources say CBS decided not to build the spinoff around him, opting instead for a more action-oriented and younger tone. Though Selleck has expressed willingness to appear in guest roles, he won’t be a series regular.

Bridget Moynahan’s Erin Reagan is also not part of the new show. Having wrapped her character’s story with a graceful exit, Moynahan is reportedly focusing on new opportunities outside of the Reagan family universe. Other core cast members, including Jamie and Henry, are likewise absent, with no confirmed plans to appear even as guests.

The shift in cast signals a fresh direction for the franchise. Boston Blue aims to tell new stories, centered on Danny Reagan’s evolution in a new city. Still, many fans hope the door remains open for surprise returns down the line.