FRANK IS DISAPPOINTED TO HEAR THAT HIS FORMER PARTNER REVEALED SOME OF THE NYPD'S DIRTY LAUNDRY IN AN EXPOSé, ON "BLUE BLOODS," FRIDAY, MARCH 15

Treat Williams Returns as Frank's Former Partner, Lenny Ross

"Two-Faced" - Frank's longtime friend Lenny (Treat Williams)
reveals to him that an upcoming exposé will air some of the NYPD's dirty laundry. Also, Erin must decide how to charge a doctor whose experimental treatments led to the death of his terminally ill daughter; Danny and Baez investigate the mysterious overdose of a promising artist; and Jamie follows a lead about a corrupt officer in his precinct, on BLUE BLOODS, Friday, March 15 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Tom Selleck (Frank Reagan)
Donnie Wahlberg (Danny Reagan)
Bridget Moynahan (Erin Reagan)
Will Estes (Jamie Reagan)
Len Cariou (Henry Reagan)
Marisa Ramirez (Det. Maria Baez)
Sami Gayle (Nicky Reagan-Boyle)
Vanessa Ray (Officer Eddie Janko)

RECURRING CAST:

Andrew Terraciano (Sean Reagan)
Abigail Hawk (Abigail Baker)
Gregory Jbara (Garrett Moore)
Robert Clohessy (Lt. Gormley)
Steven Schirripa (Anthony Abetamarco)
James Nuciforo (Nuciforo)
Yasha Jackson (Maya Thomas)

GUEST CAST:

Treat Williams (Lenny Ross)
James Riordan (Chris Johnson)
Armand Schultz (Dr. David Peterson)
Mike Keller (Lt. McDonnell)
Jennifer Roszell (Elaine Peterson)
Leigh Ann Larkin (ME Megan Carson)
David Levi (Gavin Schlenger)
Fortuna Gebresellassie (Annie DA's Office Assistant)
Ron Simons (Dr. Diubaldo)
Erika Rolfsrud (Kathy Zora)
Francesca Mckenzie (Caroline Mason)
Edward Hibbert (Milton Vance)
Moise Morancy (Twitter Ty)
Donald Dash (Will Thomas)
Leila Almas (Vance's Assistant)
Karl Kenzler (Jeremy Breen)
Derek Hedlund (Uniform)

WRITTEN BY: Kevin Riley

DIRECTED BY: Ralph Hemecker