Martha Logan is the first lady of the United States. She is the capable yet mercurial wife of President Charles Logan. Martha becomes contemptuous of her husband's conduct in office and decides to go public and end his career. Martha Logan takes part in a plot to get her husband to confess that he conspired with terrorists. Yet her mental health problems undermine her credibility and raise the possibility that she may be forced into treatment at an inpatient facility. After the events of the fifth season she was committed to a mental health facility.