From a serial killer still after one of the team to Hetty's continued role at the agency, we have some theories about Season 13. As much as we might like to see Hetty around as often as she used to be â which could mean her assuming her old job â NCIS: LA first has to address just where sheâs been. After all, in the finale, she did tell Retired Navy Admiral Hollace Kilbride (Gerald McRaney, upped to series regular for next year) that they needed to have a chat. Thatâs clearly not over, but we have a feeling that, depending on Huntâs availability, the rest of the team will be read in and part of how that ends.