Erin Brill is an employee at Davis & Main.
Erin and other representatives from Davis & Main and HHM meet to confer on the Sandpiper case. ("Cobbler")
Erin once again meets with other representatives from Davis & Main and HHM meet to confer on the Sandpiper case. ("Amarillo")
After Jimmy causes a scandal with an unsanctioned television ad, Erin is detailed to assist Jimmy, though in actuality, her assignment is to monitor his activities and keep him in line with company policy. While Erin attempts to do this in as diplomatic a manner as possible, Jimmy is quick to recognize the leash Erin represents, however, ducking her at one point and then arguing with her at court. ("Rebecca"), ("Bali Ha'i")
Erin observes as Jimmy attempts to get himself fired. When he eventually succeeds in doing so, after having his employment terminated, Jimmy snatches a soda can from her grip and deliberately throws it into an office garbage can. ("Inflatable")