This study investigated bright- and dark-side personality traits of participants in talent-development programs in a range of private Danish organizations (N = 602). Previous research has looked at the personalities of leaders and high performers, but we do not know much about those who are selected for talent-development programs. They resemble high performers and leaders by being more planful and organized, self-confident, persuasive, and trusting—but also manipulative and grandiose. However, the results indicate that becoming a participant in leadership-development program is largely a question of the selecting in of desired behavior rather than the selecting out of undesired behavior. The results support the use of personality instruments before selection to talent-development programs, in addition to being used as a part of these programs.