Marcus Scribner is the latest actor to join the upcoming Blue Bloods spin-off, Boston Blue. Variety reports that the Black-ish star will play Jonah Silver, a member of the Silver family, many of whom have been cast. The character’s description hints at a dedicated lawman, much like other family members. He is “the youngest member of the Silver family and is in law enforcement like his mother and sisters, each of whom is formidable in their own ways,” reads the official character description. “Always the cool kid growing up, Jonah carries himself with confidence and swagger in all situations, so he’s naturally frustrated at being a rookie cop on the sidelines of the city’s biggest investigations.”