Shane Brennan Creator, Executive Producer Chris O'Donnell Special Agent G. Callen Actor LL Cool J Special Agent Sam Hanna Actor Linda Hunt Henrietta "Hetty" Lange Actor Daniela Ruah Special Agent Kensi Blye Actor Eric Christian Olsen LAPD Detective Marty Deeks Actor Medalion Rahimi Special Agent Fatima Namazi Actor Caleb Castille Special Agent Devin Rountree Actor Gerald McRaney Retired Admiral Hollace Kilbride Actor Alicia Coppola FBI Senior Special Agent Lisa Rand Guest Star JD Cullum FBI Forensic Psychologist Mark Collins Guest Star Derrick A. King Michael Jeffries Guest Star Richard Gant Raymond Hanna Guest Star Rob Nagle Albert "Al" Barrington, Plague Doctor Guest Star Tobias Jelinek Bobby Griffin, Wolf Guest Star Matt Kelly Justin Tucker, Clown Guest Star Teya Patt Cindy Ferguson, Faceless Mask Guest Star Antony Del Rio Alexander Hughes Guest Star Adrian Elizondo Philip Guerrero Guest Star R. Scott Gemmill Executive Producer John Peter Kousakis Executive Producer Andrew Bartels Executive Producer Kyle Harimoto Executive Producer Frank Military Executive Producer, Writer Adam Key Writer Suzanne Saltz Director