Meet our Leadership Team

Megan Roe (Head of School)

Megan is from the United States and graduated from the University of Missouri with a Bachelors of Science in Education and has an M.S. from Fort Hayes State University in Instructional Technology with a building administration endorsement. She is currently pursuing her doctorate degree through Southeastern University. She has over 15 years of experience in international education in Japan (Sapporo and Tokyo), having served as a teacher, curriculum coordinator, and principal. Megan enjoys the beautiful ocean view and the kind students at OCSI. She also enjoys spending time with her husband and four daughters, spending time in nature, and drinking coffee.

Sosro Wibowo Karsosoemo (Business Director)


Sosro is from Indonesia. He graduated from Waseda University with a Bachelors of Science in Industrial System Engineering. He worked in the IT industry for 14 years, spending the last 8 years managing projects for Symantec. In 2015 he moved to Okinawa with his wife and son and worked full time as a church leader. Having blessed with a daughter since then, he enjoys raising up family in this beautiful island and being part of OCSI team serving God’s work in Okinawa.

Dan Pallmann (Secondary Principal)


Dan was born and raised in New York, but made his way to Hawaii and eventually to Japan. In 2003 he moved to Okinawa with his wife. He holds a Masters of Arts in Education from Liberty University. After teaching in the classroom for 19 years, he now enjoys the challenge of serving as principal. You might find him enjoying a cup of coffee or strolling on the beach with his family.

Sarah Turner (Elementary Principal)

Sarah was born in Florida, but moved to Japan at 2 months of age. She grew up outside Tokyo until graduating from High School at Christians Academy in Japan. She graduated from Johnson University and received her B.S. in Elementary Education and Bible with an emphasis in ESL. In addition, she holds a Masters of Arts in Holistic Education. Sarah has taught 1st grade for 7 years at OCSI. Sarah enjoys traveling, drinking tea, and unique earrings.

Nick Mcquillin (Operations Director)


Nick is a passionate tech enthusiast with extensive experience in international education and school management. He earned a degree in Intercultural Studies from Providence College, which propelled him to Japan in 2004. Initially, he joined a team that focused on campus ministry and reaching out to university students. After getting married, Nick and his wife spent more than a decade managing a language and culture center. With a strong foundation in intercultural communication and technology, Nick transitioned to the international school industry. When he is not working, Nick enjoys spending quality time with his three children, engaging in outdoor activities and water sports.

Brad Skarin  (Director of Teaching & Learning)

Brad, a Maryland native, has called Okinawa home since 1998, when the Marine Corps brought him to the island. Holding a Masters of Arts in Religion and a Doctorate in Education with a focus on Curriculum and Instruction, Brad dedicated 13 years to teaching at OCSI before transitioning to the leadership team. His expertise spans secondary Math, Science, and Bible, and he currently serves as the Director of Teaching and Learning.

Beyond his professional pursuits, Brad is a proud parent to three current OCSI students and one alum. In his leisure time, he embraces the outdoors through activities like biking, running, and paddle boarding. Brad’s commitment to both his faith and education is evident in his love for Jesus and his role at OCSI, where he feels blessed to pursue these passions.

Board of Directors

Meet OCSI’s board, a group of volunteers along with OCSI’s head of school:

  • Larry Brantley (Board Chair)
  • Tommy Ruiz (Vice Chair)
  • Toshitatsu Horii
  • Emma Ikehara
  • Shingo Kawasaki
  • Shu Aoki (Auditor)
  • Takashi Wada (Auditor)
  • David Kupiec (Secretary)

The board uses the policy governance model. The board sets the mission and vision, and the Leadership Team implements the mission and vision, which includes helping students achieve OCSI’s expected student outcomes. Board activity is monitored by the auditors and council, in compliance with the Articles of Incorporation.

Parents, please review…..