This study examined the impact of online instructor actions on student satisfaction in online, graduate education courses. Students at an online institution that offers graduate degrees in Educational Leadership, Curriculum and Instruction, and Educational Technology completed the Priority Survey of Online Learners, which included questions about various aspects of their online learning experience, specifically focusing on timeliness, responsiveness and frequency of online instructor actions. This causal-comparative, quantitative research study employed survey strategy of inquiry. The sample consisted of 256 graduate, education students at an online, private institution. Paired t-tests were employed in data analysis. The results of this study revealed that online instructor actions in the areas of frequency, responsiveness and timeliness are statistically significant on online, graduate education student's satisfaction. Descriptors: Student Satisfaction, Distance Education, Adult Learner, Graduate Education