Chris O'Donnell: G. Callen
LL Cool J: Samuel 'Sam' Hanna
Peter Cambor: Nate 'Doc' Getz
Daniela Ruah: Kensi Blye
Barrett Foa: Eric Beal
Linda Hunt: Henrietta 'Hetty' Lange
Eric Christian Olsen: Martin A. 'Marty' Deeks
Renée Felice Smith: Nell Jones
Adam Jamal Craig: Dominic Vaile
Miguel Ferrer: Owen Granger