Blue Bloods has had many outstanding guest stars during its fourteen-year run. The Tom Selleck-led drama focuses mainly on the members of the Reagan family, a multi-generational family of New York City cops; however, it wouldn’t be able to tell its stories without guest actors playing cops, victims, villains, and friends of the family. Over the years, some guest stars have become beloved secondary characters who have earned their place at Blue Bloods’ Reagan family dinner table.