Abstract: This study aimed to scrutinize EFL teachers’ strategies and challenges of character building in online and face-to-face classrooms. This case study involved two seventh grade English teachers as the subjects. The findings revealed that the teachers’ strategies of character building in seventh grade EFL classrooms were through the use of speech acts, modeling, rule reinforcement, and habituation. However, the strategies to use in the online and face-to-face classrooms were different. The challenges the teachers faced during the teaching and learning process were time allotment, the absence of English in some elementary schools, and the zoning system.Keywords: character building, EFL classroom, junior high school