Marcus Scribner has joined the cast of “Boston Blue,” CBS’ upcoming spinoff of “Blue Bloods,” as a series regular. He will play Jonah Silver. Per an official character description, “Jonah is the youngest member of the Silver family and is in law enforcement like his mother and sisters - each of whom are formidable in

Marcus Scribner (black-ish) has been cast as a series regular on the upcoming 'Blue Bloods' spinoff 'Boston Blue' for CBS.