The present study explores the learner stories of two Hong Kong English language students: a returnee student (a native speaker of English) and those of one of his local classmates (a native speaker of Cantonese). With the high level of migration from and to Hong Kong over the last 25 years, the number of children returning to Hong Kong from English-speaking countries has increased dramatically. Many of these returnee children enter the local Hong Kong education system and study English as a foreign language alongside Cantonese-speaking students. Through biographical interviews, this study investigates the complexities of the Hong Kong EFL classroom contexts and the implications on bilingual identity formation. The interview data provide insight on the negotiation of and limitations on bilingual identity formation in educational settings. [Copyright of Innovation in Language Learning and Teaching is the property of Routledge. Full article may be available at the publisher's website: http://dx.doi.org/10.2167/illt052.0]