Developing an identity as a Scholarship of Teaching and Learning (SoTL) researcher is associated with tensions of expanding on one's disciplinary identity and often traversing the liminal space between disciplines that result in a newfound perception of professional self. This study explores the differences that emerged in SoTL identity formation among three different groups of researchers. Focus groups of faculty, graduate students, and professional staff who identified as SoTL researchers were conducted at one comprehensive research institution. Using thematic analysis, the differences and similarities for each of these groups in terms of barriers to SoTL identity formation and motivations for developing a SoTL identity are shared. Reflecting on these barriers and opportunities, a variety of implications for practice for Educational Developers are suggested as they look to support the SoTL identity development of researchers at their institutions.