This study investigates the difference in Foreign Language Anxiety (FLA), Self-Perceived Communication Competence (SPCC) and Willingness To Communicate (WTC) of Korean EFL university learners in English communicative classes taught by native or nonnative English speaking instructors. It also aims to examine whether there is a significant correlation among these affective factors in native versus nonnative classes. For this purpose, 318 Korean college students participated in the questionnaire surveys and independent sample t-tests, Pearson correlations and Multiple regression analyses were conducted in order to analyze the collected data. Findings showed that FLA was less affected by teacher variable while SPCC and WTC indicated a greater statistical difference between native and nonnative classes. For both instructor groups, FLA correlated negatively with SPCC and with WTC; SPCC correlated positively with WTC. Findings also showed that the sub-variables of FLA or SPCC that significantly affect the WTC in-class were the same, while those that significantly affect the WTC out-of class were different between native and nonnative classes. Based on the findings, certain suggestions are made for EFL teachers to reduce language learning anxiety and encourage willingness to communicate in foreign language classroom settings.