THE TEAM SEARCHES FOR SAM'S FORMER PARTNER WHO DISAPPEARS WHILE BUYING A BOMB DURING AN UNDERCOVER OPERATION, ON A REBROADCAST OF "NCIS: LOS ANGELES," MONDAY, APRIL 4

"Unspoken" - The team searches for Sam's former partner, Ruiz (Anthony Ruivivar)
, who disappears while buying a deadly explosive during an undercover operation, on a rebroadcast of NCIS: LOS ANGELES, Monday, April 4 (9:59-11:00 PM, ET/PT), on the CBS Television Network. (Originally broadcast 11/5/15.)

REGULAR CAST:

Chris O'Donnell (NCIS Special Agent G. Callen)
LL COOL J (NCIS Special Agent Sam Hanna)
Linda Hunt (Henrietta "Hetty" Lange)
Daniela Ruah (NCIS Special Agent Kensi Blye)
Eric Christian Olsen (LAPD Detective Marty Deeks)
Barrett Foa (Tech Operator Eric Beale)
Renée Felice Smith (NCIS Intelligence Analyst Nell Jones)
Miguel Ferrer (NCIS Assistant Director Owen Granger)

GUEST CAST:

Anthony Ruivivar (Mark Ruiz)
Andrew T. Lee (Ramon Santos/Amir Mattar)
JB Tadena (Diego Lacan)
Arlene Santana (Alicia Ruiz)
Stacey Hinnen (Gary Madison)
Eugene Shaw (Isko Lacan)
Aiden Lew Andowski (Joey Ruiz)

WRITTEN BY: Erin Broadhurst and Frank Military

DIRECTED BY: Diana C. Valentine