The objective of this research is to determine the existence of the halo effect based solely on the voice pitch. This research has tested if there are any differences in evaluation of four different voices (high-pitched male, high-pitched female, low-pitched male and low-pitched female) whose frequencies were determined as more or less attractive in previous studies, on five personality traits (extraversion, neuroticism, conscientiousness, agreeableness and openness). Moreover, this research has tested if there are any gender differences in the evaluations themselves. The research has been conducted on some undergraduate students of two universities in Zagreb. There were 126 participants, 62 male and 64 female. The participants listened to four voices and their assignment was to evaluate the personality of a person behind the voice. The personality evaluation was conducted on The adjective measure of the Big Five Personality Model (Kardum & Smojver, 1993)). The measure consists of 50 adjectives, 10 for each personality trait. The results of this research mostly support former research and have not only found the main effect for each personality trait, but also the main effect for gender on two of the traits. It has also shown that women with high-pitched voices and men with low-pitched voices are evaluated as more extraverted, more agreeable, more open, more conscientious and less neurotic. Furthermore, the research has shown that in relation to the conscientiousness personality trait, the female participants generally give higher scores, regardless of the gender or the pitch of the voice they listen to. Also, as per the openness personality trait, both male and female participants give higher scores to same-gender voices, regardless of the pitch of the voice.