Kim Brown is the loyal wife of the now Sergeant First Class Bob Brown. In the first season, she and Bob, then a Staff Sergeant, are new arrivals to the Unit. At first, she is confused by the new rules of the wives of Unit team members, but soon Jonas Blaine's wife, Molly, takes Kim under her wing and shows her the ropes. Her closest friend in the group is Tiffy Gerhardt, although Kim sometimes will distance herself from Tiffy due to the bad decisions that Tiffy continually seems to make.