SAM GOES UNDERCOVER AS A DAY TRADER AFTER A PROMINENT INVESTMENT BANKER WITH TIES TO AN INFAMOUS RUSSIAN OLIGARCH IS MURDERED, ON "NCIS: LOS ANGELES," SUNDAY, OCT. 29

Vyto Ruginis Returns as Arkady Kolcheck

"Mountebank" - Sam goes undercover as a day trader after a prominent investment banker with ties to a Russian oligarch is murdered. Also, one of Callen's aliases is the victim of credit card theft, and Mosley is concerned it signals something bigger, on NCIS: LOS ANGELES, Sunday, Oct. 29 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

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

RECURRING CAST:

Andrea Bordeaux (NCIS Special Agent Harley Hidoko)
Vyto Ruginis (Arkady Kolcheck)

GUEST CAST:

Tembi Locke (Leigha Winters)
Costas Mandylor (Abram Sokolov)
Uriah Shelton (Finn)
Svetlana Efremova (Vladlena Sokolov)
Jon Lindstrom (Phillip Nelson)
Presilah Nunez (NCIS Analyst Dana Hill)
Amy Stewart (Jen)
Dan Southworth (Alika Hatch)
Rich Ting (Keith)
Mark Bloom (Victor)
Americus Abesamis (Tomo)

WRITTEN BY: Jordana Lewis Jaffe

DIRECTED BY: Terrence O'Hara