|Name||William "Liam" Edison Walker|
|Occupation||Assistant District Attorney|
|Episode(s)||1.1 Pilot .02 Back in the Saddle 1.03 Bobble Head 1.04 Don't Fence me in 1.05 Duke 1.06 Bar None 1.07 Tracks 1.08 Fine is a Four Letter Word 1.09 Rule No. 17 1.10 Encore 1.11 Freedom 1.12 A Tale of Two Families 1.13 Defend The Ranch|
William Edison Walker, also known as Liam is the younger brother of Cordell Walker. His parents are Abeline Walker and Bonham Walker. Liam is an assistant district attorney in Austin, Texas. Liam is gay and presently has a fiancé, Bret. Liam stepped up to take care of his niece(Stella) and nephew (August) when Cordell took an undercover assignment soon after his wife, Emily Walker was shot and killed. He became very close to them, and Cordell is jealous of this. Liam can be described as being quiet, guarded, and has strong integrity. Liam takes great pride in family and stays close to them. At times, Liam will choose family over himself. Liam and Cordell are close. Liam will do whatever it takes to keep his brother and family intact.