From Walker Wiki

Walker S01E04 2082.jpg
Name Ada
Actor Morgan Calhoun
Episode(s) 1.04 Don't Fence Me In


Ada works with Liam Walker in some capacity, though it's unknown yet what her official title is. She has some knowledge about Emily Walker's murder, based on her interactions with Liam in episode 4 (Don't Fence Me In). We see her discussing the case after bringing Liam files on it, and she also mentions Larry James having pulled surveillance logs from the night of the murder.