What Happened to Hetty?

Hetty has been calling her agents from undisclosed locations and giving them orders. She has been assigning them with cases and had previously saved Deek's job. However, according to the reports of The Pioneer Woman, Kilbride played by Gerald McRaney said that she is not coming back on the show.

Why is Linda Hunt not on NCIS LA anymore?

TVLINE | It seems like you may have to bring on someone new.

As you know, Linda [Hunt] was away a lot more this season because of COVID and us trying to keep her safe. The couple of episodes that she was in, where she was supposed to be in the Middle East, we actually shot in her driveway.

Is Hetty coming back to NCIS LA?

Yes! Linda Hunt returned as Hetty in the season 12 finale of NCIS: Los Angeles and as she had Kilbride unpack her possessions, it is looking as if she is here to stay. ... Per Gemmill, “She'll try to resolve that on her own, but in the end, it will suck in the entire team—much to Kilbride's [disapproval].”