Courtney is remarkably well-spoken, polite, and calm, but also formidable and with a strong sense of justice. When challenged, she is a fierce and extremely calculating rival, able to adapt her theories easily to new evidence.

She has an almost religious devotion to the law, often referring to the "Goddess of Law"

She is very protective of her son,John Marsh carries an assortment of photos from his acting career on her

She uses the word "overruled" or "sustained" instead of objection 