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Adam Bartley (Carl Brown)
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Adam Jamal Craig (Dominic Vail)
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Aisha Hinds (Chief Investigator Ava Wallace)
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Allen Theosky Rowe (Jimmy Fang)
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Alon Aboutboul (Naseem Vaziri)
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Andrea Bordeaux (Special Agent Harley Hidoko)
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Anslem Richardson (Tahir Khaled)
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Ashley Rae Spillers (Sydney Jones)
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Aunjanue Ellis (Michelle Hanna/Quinn)
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Bar Paly (ATF Agent Anastasia “Anna” Kolcheck)
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Bill Goldberg (DOJ Agent Lance Hamilton)
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Brian Avers (Agent Mike Renko)
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Charlie O'Donnell (Michael Donnelly/Callen als Kind)
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Christopher Lambert (Marcel Janvier)
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Claire Forlani (Lauren Hunter)
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Daniel J. Travanti (Garrison)
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David James Elliott (Harmon Rabb Jr.)
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David Paul Olsen (Tom Olsen)
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Dawn Noel (LAPD Officer Jessica Cole)
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Dina Meyer (CIA Officer Veronica Stephens)
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Don Wallace (Navy SEAL Senior Chief Frank Wallace)
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Douglas Weston (Alex Elmslie)
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Elizabeth Bogush (Joelle Taylor)
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Ella A. Thomas (Jada Khaled)
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Erik Palladino (Vostanik Sobatino)
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Erik Soderbergh (Liam Henderson)
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Ernie Reyes jr. (Jemadar Thapa)
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Esaí Morales (NCIS Deputy Director Louis Ochoa)
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Gene Farber (Darius “Reznikov” Comescu)
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Hakeem Kae-Kazim (Abdul Habaza)
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India de Beaufort (Alexandra Reynolds)
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Jalyn Hall (Derrick)
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Jürgen Prochnow (Mattias)
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Karina Logue (LAPD Detective Ellen Whiting)
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Kayla Brianna Smith (Kamran “Kam” Hanna)
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Kurt Yaeger (Sullivan)
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Lamont Thompson (Spencer Williams)
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Laura Harring (Julia Feldman)
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Layla Crawford (Kamran Hanna)
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Makai Dudeck (Jake)
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Malese Jow (Jennifer Kim)
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Marsha Thomason (NCIS Special Agent Nicole Dechamps)
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Matthew Grant Godbey (LAPD Detective Dan Evans)
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Max Martini (Arlo Turk)
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Mercedes Mason (DEA Agent Talia Del Campo)
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Moon Bloodgood (Katherine Casillas)
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Natassia Halabi (Mossed Agent Eliana Sapir)
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Pamela Reed (Roberta Deeks)
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Paulina Olszynski (Julie Sanders/Tiffany Williams)
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Rocky Carroll (Director Leon Vance)
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Sara Visser (Karen St. Pierre)
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T. J. Ramini (Tobin Shaked)
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Timothy V. Murphy (Isaak Sidorov)
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Tye White (Aiden Hanna)
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Uriah Shelton (Finn)
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Vyto Ruginis (Arkady Kolcheck)
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Wesam Keesh (Ehsan Navid)