This article examines intercultural learning as a lifelong process. The data on which the article is based consist of 10 biographical interviews in which Finnish teachers were asked to talk about their lives from the perspective of intercultural learning. The analysis of the interviews showed that other people were involved in many of the experiences being referred to, and that these individuals played an important role in the stories. This article, therefore, focuses on the role of "significant others" in the intercultural learning of teachers. Three roles of significant others that arose from the data are introduced: transforming attitudes towards diversity; awakening and developing intercultural awareness; and developing ethical orientation.