Jake: Your name of Jake has created a most expressive nature, idealistic and inspirational, driven with a strong inner urge to be of service in some way that would uplift humanity as a whole. However, there is a tendency to assume too heavy a burden of responsibility for others, which leads to worry and over-concern. People with problems are drawn to you as they recognize you as one who has understanding and gives not only sympathy and comfort but provides also some constructive advice or assistance. You have a generous quality to your nature, but you must guard carefully against giving more than you receive or you will find yourself doing without because you have helped someone else. You love people, family, home, and friends and try to be a parent to the whole human race. You have a certain stability in your life, but may experience some problems in business affairs through a tendency to be somewhat scattering with your efforts. Any health problems would show as tension in the nervous system brought on by worry.
Marco: The name of Marco creates a very chaotic, restless nature, desiring peace and understanding. Under this name, you have been continually forced into activity which often creates mental turmoil. Misunderstandings with others often arise because they fail to understand your desire for freedom from binding restrictions and your intense desire for knowledge and for something worthwhile in your life. To you, life is very short and you have an intense, seeking urge that does not let you rest. You find it difficult to control your moods as you are very easily hurt or offended. This name is accident prone and you could experience mishaps and personal injuries. This name does not create good health due to its intensity and could bring such diseases as tuberculosis, pneumonia, stomach problems, heart attacks. Also you could experience many accidents.
Rachel: As Rachel you are rather serious-minded, responsible, and stable. You have the gift of tact and diplomacy, and possess a charming, easy-going nature which endears you to others. You have a sincere desire to understand the heart and mind of your fellow man, and could be very effective in a career or in volunteer work where you are handling people and in some way serving in a humanitarian way. This name also gives you a love of home and family, and as a parent you are likely to be fair and understanding. You remember the thoughtful little expressions of affection and appreciation that mean so much to others, and you have the ability to create a warm and loving environment. However, you tend to lack confidence and to be uncertain of yourself at times. If left on your own, you tend to procrastinate and to avoid facing issues. This name creates a generally well-balanced and healthy nature but any weakness in the health would cause problems in the fluid functions, such as kidney or bladder trouble, overweight, or swelling of the legs and ankles.
Cassie: Same as Rachel
Tobias: Your name of Tobias is a dual influence--at times you can be extremely happy, expressive, full of fun, and good natured; yet at other times you find it almost an impossibility to give to others, being controlled by self-pity, moods, and depression. You have a sensitive nature, feeling and sensing much more than you can fully understand. The problem then would be in controlling your feelings and reactions. They could be too strong and result in uncontrolled thoughts. You find it difficult to be patient, practical, and systematic, preferring to act impulsively as the spirit moves you. Indulgences could result in skin rashes, liver problems, heart trouble, or lung and chest congestion.
Ax: The name of Ax gives you a very individual, reserved, serious nature. You stick stubbornly to your ideas or decisions, in spite of any appeals or advice; you are not willing to accept a compromise. You prefer to be alone with your own thoughts, rather than in the company of others. This name restricts spontaneity in association with others and the fluency of your verbal expression. When you are required to express yourself in personal matters requiring finesse and diplomacy, you feel awkward and embarrassed. Although you realize perfectly well what is expected of you, you are unable to find the right words, and hence you end up saying something inappropriate in a candid way. You can express your deeper thoughts and feelings best through writing. Your friendships and personal associations are rather restricted, being limited to those of a similar nature who can understand and accept your rather straightforward yet reserved manner. You are steadfast and loyal, and do not allow gossip or anything belittling to be said against those whom you accept in friendship. You find satisfaction in being outdoors or in getting out into nature, or in dealing with the products of the earth. You would have an inclination for fishing or camping, and enjoy meeting the challenge of the outdoors. There is originality and depth of thought contained in this name, particularly along practical and mathematical lines. This name can adversely affect the health of your respiratory organs, the heart and lungs. Also, you are prone to suffer from weaknesses centering in the head.
Well, how did KAA do with the personalities of the Animorphs? Or, more accurately, who believes in those personality predicting things?
IMO, Jake is right, Marco is wrong, Rachel is wrong, Cassie is right, Tobias is half right, and Ax (amazingly enough) is right.