Commander Harmon "Harm" Rabb, Jr. is a brave, outstanding Navy lawyer and officer in the Navy's Judge Advocate General (JAG) Corps. Paired up with Lt. Colonel Sarah "Mac" MacKenzie, these military lawyers complement each other to make an unstoppable duo.
Catherine Bell (Lt. Col. Sarah "Mac" MacKenzie)
Lt. Colonel Sarah "Mac" MacKenzie, is a confident, headstrong Marine Corps attorney. Mac investigates, prosecutes and defends military cases with partner and friend "Harm."
John M. Jackson (Admiral A.J. Chegwidden)
Admiral A.J. Chegwidden is the officer in charge of overseeing all JAG cases. A former Navy SEAL, Chegwidden doesn't back down from a challenge and often serves as a mentor to Harm and Mac
Patrick Labyorteaux (Lt. Bud Roberts)
Lieutenant Bud Roberts is a former law clerk turned attorney working with Harm and Mac. A computer whiz and veritable font of information, Roberts serves as an integral part of the team
Karri Turner (Lt. Harriet Sims)
Lt. Harriet Sims is a naive, hard-working administrative assistant assigned to JAG who is married to colleague Lieutenant Bud Roberts.