
In Greek, Medieval, and Renaissance thought, the traditional four elements form the basis for a theory of medicine and later psychological typology known as the four temperaments. Each of the temperaments were associated with particular physical and mental characteristics and the result is a personality classification. Despite its inability to change the words related to body secretions and diseases, this personality chart can be loosely applied to Tammy, Mandy, Courtney, and Misty. This interpretation suggests that Misty and Courtney are the emotionally unstable versions of Tammy and Mandy, which undermines the idea that Courtney is the well adjusted one because she is elated to just have macaroni and cheese and a Garfield doll.

Phlegmatic: Tammy
A phlegmatic person is calm and unemotional. While phlegmatics are generally self-content, their shy personality can often inhibit enthusiasm in others and make themselves resistant to change. They are very controlled, consistent, relaxed, rational, and observant.

Sanguine: Mandy
A person who is sanguine is generally light-hearted, fun-loving, a people person, loves to entertain, spontaneous, and confident; however, she can be day-dreamy.

Choleric: Courtney
A choleric person is not frightened by difficulties and is very passionate. Whenever the choleric is bent upon carrying out her plans, she gets very excited. She considers even her very defects as being justified and worthy of praise; for instance, her pride, obstinacy, and anger.

Melancholic: Misty
A melancholic can become overly preoccupied with the tragedy and cruelty in the world. She is also often a perfectionist, being very particular about what she wants and how she wants it in some cases. This often results in being unsatisfied with one's own works and always pointing out to themselves what could and should be improved.