Chris O'Donnell
G. Callen (24 eps)
Peter Cambor
Nate Getz (24 eps)
Daniela Ruah
Kensi Blye (24 eps)
Barrett Foa
Eric Beale (24 eps)
Adam Jamal Craig
Dominic Vail (24 eps)
LL Cool J
Sam Hanna (24 eps)
Linda Hunt
Henrietta "Hetty" Lange (24 eps)
Rocky Carroll
Leon Vance (7 eps)
Pauley Perrette
Abby Sciuto (2 eps)
Mathew St. Patrick
Bobby J. Jenlow (1 eps)
Elizabeth Sung
Ming Lee (1 eps)
Parry Shen
Ty (1 eps)
Ariel Gade
Emma Perez (1 eps)
Elaine Kao
Xue-Li (1 eps)
Kelly Hu
Lee Wuan Kai (1 eps)
Alex Fernandez
Luis Perez (1 eps)
James Harvey Ward
Vic Stearnard (1 eps)
Clare Carey
Helen McGuire (1 eps)
Vyto Ruginis
Arkady Kolcheck (1 eps)
Matt Gerald
Victor Janklow (1 eps)
Tzi Ma
Jun Lee (1 eps)
Fernando Chien
Bobby Tang (1 eps)
Warren Kole
Air Force Captain Pete Briggs (1 eps)
Gino Salvano
Hamzi Kahn (1 eps)