This paper is a sociolinguistic research project, i.e. a case study of an Anglo-Croatian bilingual person from Australia, who has lived in Croatia for the last 20 years. The research was based on one interview, based on which a profile of the bilingual person was created with references to previous research on bilingual people. The interview results were divided into the sociolinguistic and the linguistic results. The sociolinguistic results include the respondent’s experiences, opinions, attitudes, and ideologies, while the linguistic results follow the characteristic features in the production of the respondent’s second language. The results show that the respondent is a late, English dominant bilingual. They also show ideological thinking tendencies in the respondent, such as standard language ideology and dialect ideology. Linguistic results show that the dominance of the respondent’s L1 has significant influence on the respondent’s production of L2, which is seen in code-switching and case usage. The results obtained can be used for comparative analyses with similar research topics, and they can also be used for extending this research into a wider and more representative study.