AS THE TEAM ATTEMPTS TO CATCH A KILLER WHO IS SENDING EXPLOSIVES VIA MAIL, MAGGIE CONTENDS WITH HER YOUNGER SISTER WHO MOVES TO NYC FOR COLLEGE, ON "FBI," TUESDAY, APRIL 27

Editor's note: The air date of this episode has changed.

"Brother's Keeper" - After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel. Also, Maggie tries to trust her younger sister, Erin (Adrienne Rose Bengtsson)
, is truly staying out of trouble as a new college student in NYC, on FBI, Tuesday, April 27 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Missy Peregrym (Special Agent Maggie Bell)
Zeeko Zaki (Special Agent Omar Adom 'OA' Zidan)
Jeremy Sisto (Assistant Special Agent in Charge Jubal Valentine)
Alana De La Garza (Special Agent in Charge Isobel Castille)
John Boyd (Special Agent Stuart Scola)
Katherine Renee Turner (Special Agent Tiffany Wallace)
RECURRING CAST: Vedette Lim (Elise Taylor)
Taylor Anthony Miller (Kelly Moran)
Roshawn Franklin (Agent Hobbs)

GUEST CAST:

Adrienne Rose Bengtsson (Erin)
Ben Jeffrey Rob Campbell (Mark Frazier)
(Richard Frazier)
Steven Michael Marcus (Daniel Hudson)
Marcus Choi (Henry Lasher)
Benton Greene (Russell Griffin)
Rachel Paula Greene (Campus Security Chief)
Jequrey Slaton (Campus Security Guard)
Anthony Goss (Delivery Person)
Nate Washburn (Suit Guy)
Anthony Williams (SWAT Team Leader)
Brendan Dalton (Restaurant Hostage)

WRITTEN BY: Tom Szentgyorgyi

DIRECTED BY: Alex Chapple