This study lays the foundation for reasons and ways to investigate the biased treatment of non-native characters in model dialogues in current English as a Foreign/Second Language textbooks. The literature review shows that although a plethora of studies have been conducted on gender bias in textbooks, speaker bias, or labeled nativism here, has been largely ignored. This research addresses this neglect by systematically applying parts of two frameworks previously used in analyzing textbooks for gender bias to four current EFL textbooks. The resulting data is quantitative in nature with some necessary description and qualification and shows that only one text avoids bias against non-native speakers. In the other texts, speaker bias is exhibited by non-native speakers being segregated or being only allowed to interact with a native speaker. In addition, non-native speakers are limited to non-expert roles in two texts. Based on these results, suggestions for further research are offered.