NCIS: Los Angeles - Season 9 - Eps 17: The Monster
While investigating a missing person’s case, the team uncovers a killer who puts on shows for high-paying voyeurs. Also, Mosley assigns Callen as her partner on a joint ATF mission to apprehend someone from her past.
About NCIS: Los Angeles

Title: NCIS: Los Angeles
First Air Date: 2009-09-22
Last Air Date: 2023-05-21
Status: Ended
Rating: 7.536/10 (from 1178 votes)
Language: EN
Seasons: 15
Total Episodes: 323
Network: CBS
Genres: Action & Adventure, Drama, Crime, Mystery
Production Companies: Shane Brennan Productions, Belisarius Productions, CBS Studios
Synopsis
The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.
Cast

Chris O'Donnell
G. Callen

Daniela Ruah
Kensi Blye

Eric Christian Olsen
Marty Deeks

Medalion Rahimi
Fatima Namazi

Caleb Castille
Devin Rountree

Gerald McRaney
Hollace Kilbride

LL Cool J
Sam Hanna