Her name may not be written above the door, but Rhea Seehorn's Kim has become every bit as important to Better Call Saul as Saul Goodman himself.
The Breaking Bad prequel has gradually peeled back Kim's layers, but only delved into her past on one occasion - Better Call Saul season 5
That groundbreaking twist is made all the more effective by the physical resemblance between characters, with Beth Hoyt's ability to pass for Rhea Seehorn