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Seán Easton is a professor of Greek, Latin and Classical Studies (GLCS). His research and teaching are focused on three main areas: Representations of Ancient Greece and Rome in visual media, especially movies and television; epic poetry and later writers who adapt it from it (especially Shakespeare); and environmental thought, peacemaking and the conflict emotions in ancient Greece and Rome. He teaches courses in the following interdisciplinary programs: Peace, Justice, and Conflict Studies (PJCS); Comparative Literature; Environmental Studies; Film Studies; and Sports Management. He has published articles and chapters on the Roman epic poet Lucan and the representations of Alexander the Great in Sohrab Modi’s film 'Sikandar' (India, 1941) and Oliver Stone’s 'Alexander' (USA, 2004), the Greco-Persian Wars in the '300' franchise films, Greek and Roman myth in John Frankenheimer’s classic 'Seconds' (1966), Terrence Malick’s epic 'New World' (2005), and George Nolfi’s adventure-romance 'The Adjustment Bureau' (2011).

K. Angelique Dwyer is an Associate Professor of Spanish and the Program Director of Latin American, Latinx and Caribbean Studies (LALACS). She specializes in Mexico/U.S. Intercultural Studies and teaches courses on film, border studies, Latina/x/o literature, Spanish language, and Latin American culture. Dwyer is an engaged scholar who created the student organization "Language Buddies" that works in partnership with the St. Peter Public Schools, Free Clinic, and Food Pantry. Her courses co-embed service-learning and community engagement with the goal of broadening student's intercultural skills. She has published in the fields of Chicana/Latina Studies, creative nonfiction, and pedagogy. She is particularly interested in Latin@/Latin American pop culture through the lens of Performance Theory. She has a podcast called “Gringos Mexicanos,” which broadens the dialogue on Mexican American identity that features her short stories written in Spanglish. She has a forthcoming article on the assessment of intercultural skills gained by students via community engagement learning. Dwyer also enjoys dancing, trying new foods, and photography.

Prior to joining the Gustavus faculty in 1990, Mark worked in broadcasting. He brings extensive administrative experience spanning more than 15 years, including nine years as Chief Academic Officer—serving as Provost at Gustavus Adolphus College and Senior Vice President for Academic Affairs at Augustana University. He previously held the position of Associate Dean of the College at Gustavus for seven years.

Mark has an extensive record of service to the field of higher education and was recognized nationally by the Council of Independent Colleges with its Chief Academic Officer Award. He served on the executive committee of the board of directors for the American Conference of Academic Deans, on assessment and planning teams for the Association of American Colleges and Universities, and on the board of directors for the Broadcast Education Association in Washington DC. He also chaired the board of directors of The Collaboration for the Advancement of College Teaching and Learning, and was on the executive committee of the board for the Communication and Theater Association of Minnesota. He was awarded the Outstanding Citizen Award from the City of Mankato for his work with the Department of Public Safety.

Toshiyuki Sakuragi is a professor of Japanese language and culture whose expertise draws from intercultural communication and cognitive linguistics. His research examines cultural influences on communication and language learning, addressing topics such as the relationship between attitudes toward language study and cross-cultural attitudes, the cognitive processes underlying classifier choice, and cultural influences on shyness. His research articles have appeared in journals such as the Journal of Psycholinguistic Research and the International Journal of Intercultural Relations.

Among his Japanese-language publications are two books. His single-authored book, 映画で異文化体験 (Experiencing Cultures Through Film), explores the use of film to promote intercultural learning. His co-authored college textbook, はじめて学ぶ異文化コミュニケーション (Introduction to Intercultural Communication), has been widely adopted in Japan and has gone through multiple printings.

Professor Sakuragi teaches Japanese language as well as courses on Japanese cinema and intercultural film. He has also led numerous travel courses to Japan and has taught in the Summer and Winter Japanese Language and Culture Program at Hosei University in Tokyo.

Valerie Struthers Walker, PhD,  is a teacher educator with a passion for children’s literature, inquiry-based learning and working alongside beginning and experienced teachers. She began her career as an elementary and middle school teacher in two international schools: the American International School in Bamako, Mali and the American International School of Vienna, Austria. Dr. Walker joined the Gustavus Education Department in 2010 and currently teaches elementary language arts and social studies methods and supervises practicum and student teachers.

Dr. Walker is active in both local and national professional organizations such as the National Council for the Social Studies, the Minnesota Council of Social Studies, and the Minnesota Council of Economic Education. Highlights of her career include serving on the Notable Social Studies Trade Book Award committee, collaborating with K-8 teachers to publish social studies curricula, and leading professional development workshops on reading and teaching with diverse children’s literature.

In her spare time, Dr. Walker enjoys strengthening her French skills, hiking with her family, and binging the newest Netflix shows with her kids. 

A graduate of Gustavus Adolphus College herself, Stephanie was delighted to return to her undergraduate alma mater as a professor. Stephanie teaches courses both within and beyond the Exercise Physiology major, and she finds student mentorship to be among the most rewarding aspects of her work. Her teaching philosophy is grounded in the concept of vocation, emphasizing the integration of academic learning with personal purpose. She is committed to helping students discern how their skills, values, and passions can be meaningfully applied in service to others, preparing them not only for professional success but also for lives of purpose and engagement. Research is intentionally embedded within the Exercise Physiology curriculum at Gustavus, and she regularly serves as a faculty mentor for multiple student-led, independent research projects. These projects are frequently presented at local, regional, and national conferences across the country.

Her scholarly interests focus on the relationship between physical activity and bone mineral density. Most recently, she published an article in the International Journal of Fitness titled “Step Count, Calcium Intake, and Bone Mineral Density Among Women Using Depo-Provera.”

Stephanie is an active presenter and attendee at national meetings of the American College of Sports Medicine (ACSM), where she has earned Fellow status. She has also served on the ACSM Women, Sport, and Physical Activity Committee.

John C. Volin, PhD serves as the 18th President of Gustavus. 

Following a postdoctoral fellowship in plant physiological ecology at the University of Wisconsin-Madison, Volin accepted a faculty position at Florida Atlantic University, where he rose to the rank of full professor in the Department of Biological Sciences and served as the director of the Environmental Sciences graduate program. Volin joined the University of Connecticut in 2007 to head the Department of Natural Resources and the Environment, advancing to serve as Vice Provost of Academic Affairs. From 2020-2025, Volin served as the Executive Vice President for Academic Affairs and Provost at the University of Maine, where his portfolio included oversight of more than 1,000 faculty and staff and a budget of over $250 million. Volin is recognized as a national leader in using evidence-based practices to support holistic student wellbeing. He serves on the Executive Committee of the LearningWell Coalition and is a co-founder and senior advisor of LearningWell magazine.

Born and raised in Sioux Falls, South Dakota, Volin holds a BS in botany and biology and an MS in agronomy from the South Dakota State University, and a PhD in forestry from the University of Wisconsin-Madison. Volin and his wife, Valeria, have five children and six grandchildren.

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Jon Grinnell is the Francis Morey Uhler Chair in Biology. He spent his youth roaming the hills of coastal California watching the hawks and admiring alligator lizards and rattlesnakes. From the time of his first borrowed binoculars he has been fascinated with wild creatures and places, and now is excited to share those with students. 

As an undergraduate he worked with the last wild California Condors before they were taken into captive breeding programs, and as a graduate student he studied the social and communication behavior of African lions in Tanzania. For years, he worked on lions in South Africa before transitioning to American bison in South Dakota. In each of these projects he eagerly involved research students, as one of his great loves is taking students out into the field to get hands-on experience with animals and ecosystems. 

Recently his attention has shifted to the plight of shallow marine habitats and regularly takes students to study the Mesoamerican coral reef in Belize. Jon feels privileged to have the chance to teach animal behavior, aquatic biology, vertebrate zoology, and other field-based courses at Gustavus, as well as the many travel courses he has led throughout South and Central America and the Caribbean.

Jon is an avid cyclist, scuba diver, hiker, animal watcher, and bow hunter. 

For more than twenty years, Christine Nessler worked as a marketing and public relations professional across government, nonprofit, and for-profit sectors. As a former entrepreneur and franchise owner, she has experience building brands from the ground up and maintaining a strong community presence. Beyond the business world, creative writing is her primary passion. As a freelance writer, she contributed articles to various regional publications. Her short stories and essays are featured in Half and One online literary journal and The Motherly Collective.

In 2024, Nessler joined the faculty at Gustavus. Students in her courses gain hands-on experience and the practical skills necessary to thrive in the workplace by applying classroom concepts to real-world community and business projects. In Nessler’s marketing courses, her favorite part of the semester is watching the students gain confidence as they serve as consultants for local business clients. As they develop strategic marketing plans, students also develop communication, project management, and leadership skills. Similarly, in Introduction to Management, her students build their own business from the ground up. According to Nessler, watching their final business plan presentations makes her optimistic about their futures as business and community leaders.

Outside of the classroom, Nessler serves on the Board of Directors for the Harry Meyering Center, volunteers as a reader of creative nonfiction for The Good Life Review, and cheers on her three kids at their various activities.

Espen Fredrick is a Visiting Assistant Professor of Physics. A 2021 Gustavus alumnus, Dr. Fredrick earned his Ph.D. in Physics from the University of Texas at Arlington in 2025 before returning to the college, bringing with him a strong commitment to undergraduate education and student-centered research.

In the classroom, Dr. Fredrick emphasizes preparing students for future careers in science and related fields through a teaching philosophy centering on helping students develop the habits needed for independent problem solving. His favorite courses to teach include electromagnetic theory and quantum mechanics, where he enjoys helping students contextualize new mathematical formalisms to build their own physical intuition.

Dr. Fredrick’s research focuses on space plasma physics, particularly the interaction between the solar wind and Earth’s magnetic field. His work aims to improve predictions of how and when solar wind disturbances impact near-Earth space, contributing to a broader understanding of space weather and its effects on technological systems. At Gustavus, he is interested in involving undergraduates in research that emphasizes the accessibility of computational physics and empowers students to conduct meaningful research beyond traditional settings.

Beyond teaching and research, Dr. Fredrick currently assists students who operate the Olin Observatory, helping them gain hands-on experience with astronomical instrumentation. He values close collaboration with students and sees mentoring as one of the most rewarding aspects of his role. He is excited to help students grow as scientists, problem solvers, and future leaders.

Mr. Tengwall is a visiting professor in the Department of Business & Economics, where he engages students on a range of topics including Management & Leadership, Business Models & Growth Strategy, Sales & Marketing, and Supply Chain/Operations Management. He also serves on the Boards of two companies and provides management consulting services to a range of businesses.

Previously, Mr. Tengwall had a 12-year career with the Marmon Group, a Berkshire Hathaway Company. During this time he was President of EcoWater Systems LLC (2019 – 2024), a leading North American manufacturer and marketer of residential and light commercial water softening and filtration systems. Prior to that, he was president of Marmon Food & Beverage Solutions Group (2013 – 2019), which was comprised of two different businesses, Marmon Link and Marmon Renew. Marmon Link (previous dba 3Wire Group Inc) is a provider of parts, training and service for foodservice and beverage dispensing equipment. Marmon Renew is a re-manufacturer of commercial beverage dispensing and related foodservice equipment.

Prior to his executive leadership roles with Marmon/Berkshire Hathaway, he had a 17-year career with Ecolab (NYSE: ECL). There he held several progressively more responsible leadership roles in the Institutional and Food & Beverage operating divisions. He led the marketing function for both business segments and engaged in multiple acquisitions as part of the overall business growth strategy.

Mr. Tengwall began his career as a microbiologist in the Sterilization Technology & Process Control Validation group at The Upjohn Company (now Pfizer). He then pivoted into marketing and business development roles with IMI Cornelius Inc., a subsidiary (at the time) of IMI plc.

Jay Hake is a faculty member in the Business and Economics Department, where he teaches Business Law, Conflict Management, Entrepreneurship, and Social Entrepreneurship. Jay brings an integrated perspective to his faculty role: that of a licensed attorney, seasoned executive, and entrepreneur who has built companies, closed venture financings, and advised startup founders navigating the full arc of early-stage growth.

Jay's teaching philosophy centers on experiential, student-led inquiry. He believes that rigorous frameworks become meaningful only when students apply them to real decisions, and his courses are designed to support this approach, incorporating active discussion, case-based reasoning, and real world application. Whether working through contract disputes, conflict resolution scenarios, or the design of ventures built to generate both economic and social value, his students engage with material that mirrors the complexity of professional life.

Jay’s professional background spans roles as Chief Executive Officer, Chief Operating Officer, and General Counsel across technology, software, and consumer products companies. He has structured equity financings, negotiated complex commercial agreements, managed board and investor relations, and guided organizations through periods of rapid scaling. That operational and legal experience informs his approach to teaching at every stage: from identifying opportunity and building teams, to navigating the legal, ethical, and strategic challenges that define a business’s trajectory.

In addition to his work at Gustavus, Jay leads a boutique consulting firm, serving executives and startup leaders on strategic planning, leadership development, and organizational growth.

Outside of the classroom, Jay is an avid fly fisherman, hiker, lover of the outdoors, and a reader.