Boston Blue' star Mika Amonsen teases Tom Selleck cameo rumors

Amonsen says a conversation about a Selleck cameo was 'definitely there' for the 'Blue Bloods' spinoff series.

Mar. 13, 2026 at 3:19pm

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As rumors circulate that 'Blue Bloods' star Tom Selleck might make a cameo appearance on the spinoff series 'Boston Blue,' actor Mika Amonsen, who plays Selleck's grandson on the show, is remaining tight-lipped. While Amonsen says he has never met or spoken with Selleck, he teases that a cameo conversation 'was definitely there, for sure.' Selleck was outspoken about his displeasure with CBS for canceling 'Blue Bloods' in 2024 and has expressed hesitation about appearing on the new series.

Why it matters

Fans have been eager to see Selleck, who played the patriarch of the Reagan family on the original 'Blue Bloods' series, make an appearance on the spinoff. His potential cameo would be a major draw for viewers and could help bridge the gap between the two shows.

The details

Amonsen, who plays Sean Reagan, the son of Danny Reagan (Donnie Wahlberg) on 'Boston Blue,' says that while a Selleck cameo was discussed, 'other people who worked with Selleck, such as Donnie Wahlberg, have voices that matter a bit more.' Amonsen, who is new to the cast, replacing Andrew Terraciano in the role of Sean, says he has not been in communication with Terraciano, but that Wahlberg has. Despite some backlash from fans over the recasting, Amonsen says he has ignored the online criticism, noting that 'there was a lot of positive reinforcement underneath those postings [of fan sentiments].' Amonsen also reveals that he suffered a torn wrist and injured shoulder early on in filming the series due to a stunt gone wrong.

  • In 2024, CBS canceled the original 'Blue Bloods' series.
  • 'Boston Blue' airs on Fridays at 10 p.m. on CBS.

The players

Mika Amonsen

An actor who plays Sean Reagan, the son of Danny Reagan (Donnie Wahlberg), on the 'Blue Bloods' spinoff series 'Boston Blue.'

Tom Selleck

An actor who played the patriarch of the Reagan family, Frank Reagan, on the original 'Blue Bloods' series.

Donnie Wahlberg

An actor who played Danny Reagan on the original 'Blue Bloods' series and now stars in the spinoff 'Boston Blue.'

Andrew Terraciano

An actor who previously played the role of Sean Reagan, which is now played by Mika Amonsen, on the original 'Blue Bloods' series.

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What they’re saying

“There's a lot of fans that want to see it happen and there's speculation.”

— Mika Amonsen, Actor (Page Six)

“I would just be happy he was there. I know how much fans want him to be on the show.”

— Mika Amonsen, Actor (Page Six)

“Donnie [Wahlberg] would always laugh, because I'd be on Reddit looking up [the fan reaction], and he'd be like, 'it's gonna affect you!'”

— Mika Amonsen, Actor (Page Six)

The takeaway

The potential for a Tom Selleck cameo on the 'Blue Bloods' spinoff 'Boston Blue' has generated significant fan interest and speculation, underscoring the enduring popularity of the original series and the Reagan family patriarch. While the details remain uncertain, the show's producers appear to be considering ways to incorporate Selleck and satisfy the desires of the loyal 'Blue Bloods' fanbase.