THE NCIS TEAM IS CALLED TO AN UNMANNED AERIAL VEHICLE TESTING SITE AFTER A BODY IS FOUND IN THE RUBBLE, ON A REBROADCAST OF "NCIS," SUNDAY, APRIL 5

Editor's note: This episode replaces the previously scheduled programming.

"Sound Off" - After a body is found at an unmanned aerial vehicle testing site, the NCIS team must determine if the death was murder or an accident. Also, Palmer carefully interviews medical examiner assistant candidates, on a rebroadcast of NCIS, Sunday, April 5 (8:00-9:00 PM, ET/PT) on the CBS Television Network. (Originally broadcast 1/21/20.)

REGULAR CAST:

Mark Harmon (NCIS Special Agent Leroy Jethro Gibbs)
Sean Murray (NCIS Special Agent Timothy McGee)
Emily Wickersham (NCIS Special Agent Eleanor "Ellie" Bishop)
Wilmer Valderrama (NCIS Special Agent Nicholas "Nick" Torres)
Maria Bello (NCIS Special Agent Jaqueline "Jack" Sloane)
Brian Dietzen (Medical Examiner Jimmy Palmer)
Diona Reasonover (Forensic Scientist Kasie Hines)
Rocky Carroll (NCIS Director Leon Vance)
David McCallum (Dr. Donald "Ducky" Mallard)

GUEST CAST:

Katie LeClerc (Marine Staff Sergeant Diana Murphy)
William R. Moses (Edison Geary)
David Burke (George Ingram)
Peter Graham (Christopher Crane)
Amir Korangy (Professor Zahir Najjar)
Adam William Zastrow (Ronald Kepczak)
Timothy Hornor (Ian)
Danny Brown (Sophie)
Mo Beatty (Payload Operator)

WRITTEN BY: Lisa Di Trolio

DIRECTED BY: William Webb