This study reports on a large-scale survey on primary school teachers' perceptions of being change agents and the extent to which these perceptions are related to personality and contextual factors. A principal component analysis and confirmatory factor analysis revealed nine characteristics of teachers as change agents. Personality and contextual factors are related to teachers' perceptions of being a change agent. Four teacher profiles were distinguished according to the varying degrees of teachers' perceptions of themselves as change agents. This study adds to the further understanding of teachers as change agents, their characteristics and how these characteristics are related to personality and contextual factors.