This study aims to better understand the dispositional traits and emotional states of pre-service teachers and the association between these attributes and the effectiveness of their interactions with students. The authors examine two dispositional traits that hold particular promise: personality and adult attachment style. They also examine three emotional states: depression, anxiety, and stress. The findings of this study offer a new understanding of the importance of gauging pre-service teachers’ personalities and emotions. Overall, pre-service teachers in this study reported positive personality traits and emotions. Given that individuals in teacher education programs may have different personalities and emotional states than their same-age peers, teacher educators should be attuned to the unique qualities of the individuals they prepare for the classroom.