Mentoring student-teachers and novice teachers constitutes a critical factor in teacher-education programmes and yet, little emphasis has been placed on the mentors themselves, particularly in relation to their own professional development (PD) and the construction of their identities. Does it really matter? This study investigates two groups of mentors: one group who received professional training and one group who received no professional training. The research questions address how mentors perceive their role, what preparation they receive to serve as effective mentors, and what are their professional needs. The study illuminates essential aspects of the mentors' role perception and the impact of mentoring education on the professional identity of mentors. The implications are that low involvement in PD workshops could be linked to the uncertainty in mentors' own self-perception as mentors. How mentors perceive their roles does matter if they wish to gain recognition by significant others within their institutions. Likewise, schools need to provide a supportive culture which is fundamental to identity construction.