Persona Dolls is a powerful and innovative educational tool to tackle exclusion due to discrimination in pre-school education, as well as in the first two grades of primary education. The present research conducted inGreece, is only a part of a wider research project and describes how this tool was introduced to Greek student-teachers, the training they received and the impact this tool had, when implemented, in their early yearsclassroom. The approach to research followed was a qualitative one and the methodology was child-centred,while the evidence was collected by means of triangulation of data. The research findings indeed confirmed the positive outcomes that have been identified in other international studies regarding the implementation of theapproach. Moreover, it became evident that although this educational tool has been designed for trained professionals, it can equally and effectively be used by trained student-teachers.