Blue Bloods

The Devil You Know

Directed by John Behring
TV-14
S8 • E21    May 4, 2018    45m
7.98.0
Frank locks horns with a data-tracking company when they refuse to unlock a terrorist's phone that may hold information regarding upcoming targets. Erin obtains information about an impending murder from a shady source.

Where to Watch Blue Bloods - S8 • E21

Cast of The Devil You Know

  • Tom SelleckFrank Reagan
  • Donnie WahlbergDanny Reagan
  • Bridget MoynahanErin Reagan-Boyle
  • Will EstesJamie Reagan
  • Len CariouHenry Reagan
  • Vanessa RayEddie Janko
  • Abigail HawkAbigail Baker
  • Marisa RamirezMaria Baez
  • Sami GayleNicky Reagan-Boyle
  • Steve SchirripaAnthony Abetemarco
  • Nellie CampbellSofia
  • Kris ArnoldFather Denby
  • Mike DonovanJohn Romano Jr.
  • Suse FarleySofia's Mother (uncredited)
  • John BehringDirector
  • Allie SolomonWriter

 

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