‘Boston Blue’: All the Details on Len Cariou’s Return in Powerful Episode

Pop Reagan is coming to town on Boston Blue! Len Cariou reprises his role as Henry Reagan, paying a visit to see his rookie-cop great-grandson, Sean (Mika Amonsen, formerly played by Andrew Terraciano), in uniform for the first time when the Blue Bloods spinoff returns on Friday, April 3, on CBS.

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