Various literature has explored narcissistic behaviour and its distinct emotional and aggressive nature. However, there is a significant gap in research when exploring the physiological differences of individual classified as having high narcissistic traits and tendencies. Pupillometry is a measure often utilised to measure distinct differences in emotional arousal. This measure allows for excellent insight into physiological responses to various stimuli presented. This exploratory study was set up to investigate pupillometry responses to auditory stimulation in narcissistic versus control participants. Findings were consistent with previous research; however, various limitations hindered significant findings. This pilot study is a guideline for future research as it is a first attempt at exploring a physiological relationship between emotionality and narcissism in the context of a criminal hearing.