Blue Bloods The Devil You Know (Season 8, Episode 21)
TV-14
TV Episode | 41 min | Crime, Drama, Mystery

Blue Bloods

The Devil You Know (Season 8, Episode 21)

TV-14

TV Episode | 41 min | Crime, Drama, Mystery

Frank goes head-to-head with a data-tracking company when they refuse to unlock the phone of a terrorist that may hold information regarding upcoming targets.

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Cast	+ Add Cast
29 cast members

Name	Known for
Donnie Wahlberg Danny Reagan Danny Reagan See fewer	Saw II (2005)
Bridget Moynahan Erin Reagan Erin Reagan See fewer	I, Robot (2004)
Will Estes Jamie Reagan Jamie Reagan See fewer	U-571 (2000)
Len Cariou Henry Reagan Henry Reagan See fewer	About Schmidt (2002)
Sami Gayle Nicky Reagan-Boyle Nicky Reagan-Boyle See fewer	Vampire Academy (2014)
Tom Selleck Frank Reagan Frank Reagan See fewer	Blue Bloods (2010)
Marisa Ramirez Maria Baez (credit only) Maria Baez (credit only) See fewer	General Hospital (1963)
Vanessa Ray Eddie Janko Eddie Janko See fewer	Pretty Little Liars (2010)
John Pankow John Romano John Romano See fewer	To Live and Die in L.A. (1985)
Gregory Jbara Garrett Moore Garrett Moore See fewer	Blue Bloods (2010)
Robert Clohessy Sid Gormley Sid Gormley See fewer	The Avengers (2012)
Abigail Hawk Abigail Baker Abigail Baker See fewer	Blue Bloods (2010)
Steve Schirripa Anthony Abetemarco (as Steven R. Schirripa) Anthony Abetemarco (as Steven R. Schirripa) See fewer	Blue Bloods (2010)
Nellie Campbell Sofia Sofia See fewer	Jessica Jones (2015)
Gil Perez-Abraham Jorge Jorge See fewer	The Batman (2022)
Mike Donovan John Romano Jr. John Romano Jr. See fewer	Tendaberry (2024)
Christopher Shyer Martin Post Martin Post See fewer	The Core (2003)
Tony Terraciano Jack Reagan Jack Reagan See fewer	Blue Bloods (2010)
Andrew Terraciano Sean Reagan Sean Reagan See fewer	Blue Bloods (2010)
Bebe Neuwirth Kelly Peterson Kelly Peterson See fewer	Jumanji (1995)
Kris Arnold Father Denby Father Denby See fewer	When They See Us (2019)
Eddie Gattalin Pat (as Edward G. Betlow) Pat (as Edward G. Betlow) See fewer	The Booze, Bets and Sex That Built America (2022)
Victoria Blade Alice Alice See fewer	WandaVision (2021)
Chazz Menendez Flaco Flaco See fewer	Shame (2011)
Subhash Mandal Hamid Hamid See fewer	Jerry and Marge Go Large (2022)
Danielle Lee Greaves Norma Norma See fewer	Blue Bloods (2010)
Wayne Pretlow Ted Shelton Ted Shelton See fewer	Person of Interest (2011)
Kevin Dang Park Goer Park Goer See fewer	A Clear Shot (2019)
Suse Farley Sofia's Mother (uncredited) Sofia's Mother (uncredited) See fewer	Search Party (2016)