Recent waves of immigrants pose new challenges to the health care system of host countries, and one of those challenges is related to language barriers. One solution is the use of health care interpreters, an essential link between patients and providers. In health care, it is common to find different individuals acting as interpreters. Recently, researchers have focused on this aspect, however, few studies illustrate how different interpreters affect specific health care settings. In this study, the categories of interpreters will be analyzed with regards to the sub-field of mental health. The categories are family interpreters, chance interpreters, bilingual providers, bilingual medical staff, on-site professional interpreters and technology-based interpreters. This study aims to find out how these individuals influence a mental health interaction. It identifies several factors affecting the encounter, going beyond the concept of “trained and untrained interpreter” and showing the role played by non-language related differences.