GW Bailey (Lieutenant Louie Provenza): Acting commanding officer of the Major Crimes Division from Season 6, “Conspiracy Theory, Part 4” onward. Provenza is the division's senior member and normally the second-in-command of the division. As the second-in-command, he is the immediate supervisor of the team in standard day-to-day operations.
Anthony Denison (Lieutenant Andy Flynn): Provenza's partner in the field. Flynn has been restricted to desk duty since “Heart Failure” of Season 5 because of health issues. In Season 6, he is allowed to resume field work in the presence of his commanding officer.
Jonathan Del Arco (Dr. Fernando Morales): A Los Angeles County Deputy Medical Examiner who coordinates with the team, conducting autopsies. Morales has a sharp medical mind and and equally sharp, sometimes sarcastic, wit. Morales is gay, and provides expertise on the gay community in Los Angeles.
Ransford Doherty (Investigator Kendall): Kendall is responsible for examining the body at the crime scene and taking initial measurements, as well as preparing the body for transportation to the Los Angeles County Coroner's office.