AS THE TEAM INVESTIGATES A MASS CASUALTY INCIDENT AT A NEW YORK CITY RESTAURANT, MAGGIE BEGINS TO NOTICE TROUBLING BEHAVIOR FROM HER CO-WORKER, ON "FBI," TUESDAY, MAY 18

"Trigger Effect" - While investigating a mass casualty incident at a New York City restaurant, the team scrambles to determine if it was racially motivated and if there was more than one gunman. Also, Maggie starts to notice troubling behavior from her co-worker, Elise (Vedette Lim)
, on FBI, Tuesday, May 18 (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:

Alexander Chaplin (Neil Jacobs)
Zach Appelman (Bob Avery)
Matt DeAngelis (Matt Grimes)
Elisha Lawson (Yosef)
Flora Diaz (Lisa Avery)
Christa Scott-Reed (Beth Travers)
Mark David Watson (SWAT Commander)
Alexis Molnar (Olivia)
Hassiem Muhammad (James Adamu)
NaTasha Yvette Williams (Mrs. Adamu)
Josh Riley (Man)
Jenny Porrata (Maria Muñoz)
William Martinez (NYPD Officer)
David Manuele (Josh Avery)
Juliana Himawan (Hannah)
Morgan McGhee (Birthday Girl)

WRITTEN BY: Andy Callahan & Tamara Jaron & Kristy Lowrey

DIRECTED BY: Monica Raymund