The present study examined the relationship of grandiose and vulnerable narcissism with dispositional anger and hostility. We investigated the roles of neuroticism, emotional intelligence, and gender in this relationship, using a sample of 405 participants. The results indicated that vulnerable narcissism was associated with a higher tendency toward anger and hostility, and that neuroticism accounted for a large part of this association. Poor emotion managing, known as strategic emotion regulation ability, also played a role in hostility related to vulnerable narcissism, especially among men. When emotional stability was controlled for, grandiose narcissism showed links to anger and hostility. We concluded that high neuroticism and poor emotion regulation abilities among vulnerable narcissists contribute to increased anger/hostility, whereas emotional stability likely protects grandiose narcissists against these internal aspects of aggression. The significant relationships between both forms of narcissism with aggression, remaining after neuroticism and emotion regulation were accounted for, suggest that there is another underlying source of this link. Finally, we found that controlling for interindividual differences in neuroticism significantly increased the relationship between vulnerable and grandiose narcissism, suggesting the existence of the common core of narcissism.