Boston Blue has unveiled its new Frank Reagan, with the Blue Bloods spin-off set to debut in late 2025.

While Tom Selleck was a key figure in CBS' Blue Bloods as the Reagan family patriarch Frank Reagan, there's been no word on whether he'll make an appearance in Boston Blue.

When Danny Reagan (portrayed by Donnie Wahlberg) joins the Boston PD, he'll be teamed up with Detective Lena Silver (Sonequa Martin-Green), who also hails from a distinguished police family.

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At the helm of that family is Reverend Peters, described as "a renowned pastor of a historic Baptist church in Boston", who is an "open-minded, welcoming man that is comfortable in all traditions".

The actor stepping into the role of Reverend Peters, familiar to film buffs, has now been disclosed.

Boston Blue's Reverend Peters will be played by actor Ernie Hudson.

He's best known for his roles as Winston Zeddemore in the Ghostbusters series and McDonald in Sandra Bullock's Miss Congeniality.

Hudson's other credits include LA's Finest, Quantum Leap, The Family Business, The Crow and The Basketball Diaries.

Much like Magnum PI star Tom Selleck's fatherly role as Frank Reagan, Hudson's pastor is anticipated to take on a similar role prior to Blue Bloods' cancellation after 14 seasons.

CBS has unveiled more about the Silver family tree, revealing that Reverend Peters is the father of Boston's District Attorney Mae Silver and grandfather to Superintendent Ashley Silver, rookie officer Isaac Silver and Detective Lena Silver.

To date, apart from Reverend Peters, the only member of the Silver family who has been cast is The Walking Dead actress Sonequa Martin-Green, who will play Lena.

There's no official release date for Boston Blue as yet.

However, it's expected to premiere in the autumn of 2025 and when it does, the spin-off will take over the Friday 10pm slot currently occupied by Blue Bloods.

Blue Bloods is available to watch on CBS.