This paper aims to investigate the perceptions and identities of elementary English teacher educators who are elementary teachers. It also examines the development of their teacher educator identities and the factors that affected their identities. The participants were five in-service elementary teachers who were doctoral candidates majoring in elementary English education. Autobiographic essays, reflective journals, and interviews were collected and qualitatively analyzed using content analysis. The findings are as follows: First, the teacher educators perceived teacher education as sharing ELT experience and knowledge with teacher learners based on their needs. The teacher educators felt more burden for teaching in-service teachers rather than pre-service teachers. Second, teacher educators displayed teacher, learner, researcher, and leader identities. Third, the teacher educators went through three different stages including the initial, implementation, and expansion stages. Lastly, teacher educator identities were affected by various factors such as teacher learners’ reaction and feedback, peer teacher educators’ empathy and collaboration, conversion of theory and practice in graduate programs, and substantial assistance from in-service teacher training programs. The findings revealed the importance of human and institutional mediation in elementary English teachers’ teacher educator identity development. Further important implications regarding English teacher educator identities, English teachers’ professional development, and English teacher education are discussed.