Episode Overview
Callen and Sam work with Navy Captain Harmon "Harm" Rabb, Jr. (David James Elliott) to locate a group of ISIS sympathizers aboard the USS Allegiance. Also, Hetty enlists her friend, Lieutenant Colonel Sarah "Mac". Mackenzie (Catherine Bell), to help obtain information from a Russian diplomat.
Guest Stars
David James Elliott
Harmon Rabb Jr.
Alyssa Diaz
Jasmine Garcia
Gil Birmingham
Steven Douglas
David S. Lee
Pavel Volkoff
Catherine Bell
Sarah MacKenzie
Guy Wilson
Gunner's Mate Michael Skinner
Don Wallace
Frank Wallace
Erik Palladino
Vostanik Sabatino
Simonna
Mistress
Sprague Grayden
Olivia Baird
Tim True
Anton Yashnikov
Spencer Daniels
PO2 Vincent Davis