In this article, an attempt is made to analyze and psychologically examine the main characters of the play Mr. Asrari's Press World by Bahram Bayzaei from the perspective of the Five Factor Model (FFM) of Robert McCrae and Paul Costa. Modir and Shirzad are the two main characters of the play, whose story revolves around their actions and speech. The approach of trait psychology believes that by knowing and examining people's personality traits, their behavior can be predicted. One of the important theorists in trait psychology are Robert McCrae and Paul Costa. They identified five main factors of neuroticism, extraversion, openness to experience, agreeableness and conscientiousness for the trait.The purpose of this article is to answer these questions, how to analyze the characters of Modir and Shirzad with the Five Factor Model (FFM) of personality, and also how the sub-traits of the five main traits are shown in the formation of the two mentioned characters. This article analyzes the characters by describing the personality questionnaire of Robert McCrae and Paul Costa, as well as by examining and studying the dialogues and actions in the text of the play. The method of collecting library information is to review and read the text of the play. The method used in this research is the descriptive-analytical method in which the selected characters have been examined and analyzed according to their coordination and overlap with the mentioned psychological theory. The results show that the Modir is not neurotic in factor N (neuroticism). In factor E (extraversion), it is extroverted. In factor O (openness), he is dogmatic and bigoted. It is not consistent in factor A (agreeableness). In factor C (conscientiousness) he is conscientious. The character of Shirzad in factor N (neuroticism) is neurotic. In factor E (extroversion), it is introverted. It is experiential in the O factor (openness). It is consistent in factor A (agreeableness). In factor C (conscientiousness) he is conscientious.