Nia Long joins 'NCIS: Los Angeles' as series regular


Nia Long is set to join the cast of NCIS: Los Angelesfor its ninth season.

Long will be a series regular on the long-running show and will play Shay Mosley, the team's new executive assistant director. Mosley is a former Secret Service agent with plenty of experience to bring to the team, as well as an east coast attitude that will take some doing to mesh with the west coast group.

The new season premieres on Sunday, Oct. 1.

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Nia Long out and about
BEVERLY HILLS, CA - FEBRUARY 17: Actress Nia Long attends the BET's 2017 American Black Film Festival Honors Awards at The Beverly Hilton Hotel on February 17, 2017 in Beverly Hills, California. (Photo by Paul Archuleta/FilmMagic)
EMPIRE: Guest star Nia Long in the 'Toil & Trouble, Pt. 1' episode of EMPIRE airing Wednesday, May 17 (9:00-10:00 PM ET/PT) on FOX. (Photo by FOX via Getty Images)
BEVERLY HILLS, CA - FEBRUARY 17: Actor Nia Long speaks onstage during BET Presents the American Black Film Festival Honors on February 17, 2017 in Beverly Hills, California. (Photo by Kevin Winter/Getty Images)
EMPIRE: Pictured L-R: Terrence Howard and guest star Nia Long in the 'Absent Child' episode of EMPIRE airing Wednesday, May 10 (9:00-10:00 PM ET/PT) on FOX. (Photo by FOX via Getty Images)
PARK CITY, UT - JANUARY 23: Nia Long attends the Creators League Studio At 2017 Sundance Film Festival - Day 5 at PepsiCo's Creators League Studio at the 2017 Sundance Film Festival on January 23, 2017 in Park City, Utah. (Photo by Jonathan Leibson/Getty Images for Creators League Studios )
PARK CITY, UT - JANUARY 22: Actress Nia Long attends the 'Lemon' Premiere on day 4 of the 2017 Sundance Film Festival at Library Center Theater on January 22, 2017 in Park City, Utah. (Photo by Matt Winkelmeyer/Getty Images for Sundance Film Festival)
LOS ANGELES, CA - JANUARY 13: Actress Nia Long attends the premiere screening of Lifetime Television's 'Beaches' at Regal LA Live Stadium 14 on January 13, 2017 in Los Angeles, California. (Photo by Paul Archuleta/FilmMagic)
PASADENA, CA - JANUARY 13: Actors Idina Menzel (L) and Nia Long of 'Beaches' attend the Lifetime portion of the 2017 Winter Television Critics Association Press Tour at Langham Hotel on January 13, 2017 in Pasadena, California. (Photo by Michael Kovac/Getty Images for A+E Network)
SANTA MONICA, CA - DECEMBER 11: Actress Nia Long arrives at The 22nd Annual Critics' Choice Awards at Barker Hangar on December 11, 2016 in Santa Monica, California. (Photo by Allen Berezovsky/Getty Images for Fashion Media)
EMPIRE: Pictured L-R: Guest stars Nia Long and Sierra McClain in the 'The Naked Villainy' episode of EMPIRE airing Wednesday, April 12 (9:00-10:00 PM ET/PT) on FOX. (Photo by FOX via Getty Images)
JIMMY KIMMEL LIVE - 'Jimmy Kimmel Live' airs every weeknight at 11:35 p.m. EST and features a diverse lineup of guests that include celebrities, athletes, musical acts, comedians and human interest subjects, along with comedy bits and a house band. The guests for Monday, June 27 included Eric Stonestreet ('Modern Family' and 'The Secret Life of Pets'), Nia Long ('Uncle Buck') and musical guest AlunaGeorge. (Photo by Randy Holmes/ABC via Getty Images) NIA LONG
LOS ANGELES, CA - JUNE 27: Actress Nia Long attends a career retrospective for SAG-AFTRA Foundation Conversations at SAG-AFTRA Foundation on June 27, 2016 in Los Angeles, California. (Photo by Vincent Sandoval/Getty Images)
NEW YORK, NY - JUNE 15: Actress Nia Long is seen in Soho on June 15, 2016 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - JUNE 14: Nia Long appears to promote 'Uncle Buck' during the AOL BUILD Series at AOL Studios In New York on June 14, 2016 in New York City. (Photo by Donna Ward/Getty Images)
NEW YORK, NY - JUNE 13: Actress Nia Long enters the 'Today Show' taping at the NBC Rockefeller Center Studios on June 13, 2016 in New York City. (Photo by Ray Tamarra/GC Images)
WEST HOLLYWOOD, CA - JUNE 07: Nia Long arrive at the ELLE Hosts Women In Comedy Event With July Cover Stars Leslie Jones, Melissa McCarthy, Kate McKinnon And Kristen Wiig at HYDE Sunset: Kitchen + Cocktails on June 7, 2016 in West Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - APRIL 27: Actress Nia Long arrives at the premiere of Warner Bros.' 'Keanu' at the ArcLight Cinemas Cinerama Dome on April 27, 2016 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
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