Patrick Harbron / (C)CBS Tap Here To Add Us Weekly As A Trusted Source Add as a preferred source on Google Despite Blue Bloods fans holding out hope that Tom Selleck will appear on Boston Blue, the actor is more unsure. Selleck, 80, was recently asked about the possibility of reprising his role as Frank Reagan in the Blue Bloods spinoff, telling Hour Detroit, "I don't know if I would do Boston Blue - that's another show." The actor noted that technically Frank's story came to an end.