Casey VanSise is a PhD student who grew up in the Front Range of Colorado. In 2016, he graduated with a dual B.A. in History and International Affairs from the University of Colorado at Boulder (achieving magna cum laude honors in the former), before earning an M.A. in International Studies at the University of Denver from 2016-18.

Casey was awarded two paid research grants based on proposals that he submitted to the Undergraduate Research Opportunities Program (UROP) in 2013 and 2014. He was also a member of the editorial board of "The Colorado Historian" journal, an undergraduate publication released annually by the history department at the University of Colorado at Boulder, from 2014-15 (with Casey's own article "Assessing the Impacts of Hunnic Difference in Mediterranean Society of Late-Antiquity" published in the Spring 2015 edition following peer-review). In 2016, Casey completed a thesis entitled "Good Neighbor Renditions and the Enemy Alien: The Latin American Civilian Internees of World War II and the Integrity of the Good Neighbor Policy," which concerned the deportation and internment of Japanese, German and Italian residents of Latin American states during the Second World War, and the broader implications of this policy for the Good Neighbor Policy and United States-Latin America relations in general.

As an M.A. student at the University of Denver, Casey had the opportunity to present his paper "The United States and the Proliferation of Latin American Populism: Assessing Patterns in US Responses to Varieties of Populism in Latin America" at the 2018 conference of the Rocky Mountain Council for Latin American Studies in Reno, Nevada. From 2017-19, Casey was also a research assistant to Dr. Peter H. Smith (visiting professor emeritus from the University of California at San Diego) both during and after earning his M.A. degree at the University of Denver. As part of this research assistantship, he helped revise and update several chapters of Dr. Smith's ninth edition of "Modern Latin America" (co-authored with Dr. James N. Green), which was published in October 2018.

Casey's primary research interests concern diplomatic history, in particular inter-American relations and especially United States-Latin America relations from the 20th century onward.