Translator professionalism is seldom studied in an empirical way in Asia, not to mention the similarities and differences in the perception of the topic as exhibited by practitioners versus clients. The present study examines translator professionalism as a multidimensional term covering practitioners' language competency, translation skills, ethics, attitudes, and behaviour in and outside the workplace setting. It compares the viewpoints of 425 practitioners and 72 clients in Asia. Data suggest that both parties have a rather positive attitude towards the professional status of translators although significant divergent viewpoints were found on whether the occupation is vital to society; whether becoming a translator requires a high degree of expertise and knowledge; and whether translators can exercise their own judgment in their jobs. However, both practitioners and clients have similar opinions on translators' proactive behaviour at work. Moreover, they attach great importance to translators' adherence to the principles of ethical practice. The findings not only contribute to research on the client-translator relationship but also provide translation teachers and students with knowledge of the latest development of translator professionalism as well as current and upcoming challenges in the industry.