Students at Seoul International School
Teacher and tiger mascot hugging.


Edward Ben Adams

Founder of School

Mr. Edward Ben Adams is the founder of Seoul International School. He was the principal and headmaster from 1973 to 2002. From 2003-2020, he has been overseeing the operations of the school as founder and manager.

Academic Leadership Team

Director of Seoul International School

Michael Colaianni

Head of School

Mr. Colaianni has been with SIS since 2014, when he was appointed as Director of Schools and later on, as Head of School. He has been in international school leadership positions in Vienna, Austria, Kobe, Japan and Florence, Italy.

High School principal at Seoul International School

James Gerhard

High School Principal

Dr. Gerhard has been with SIS since 2015.




Middle school principal at Seoul International School

John Benavidez

Middle School Principal

Mr. Benavidez has been with SIS since 2017. He has been a Middle School Administrator for over 15 years. He loves working with the SIS students and families and believes in the African Philosophy of UBUNTU, "I am because you are". We become better by helping others.

Elementary School principal at Seoul International School

Art DeFilippo

Elementary School Principal

Mr. DeFilippo has had the honor of being the Elementary Principal at Seoul International School for 10 years. He has been an instructor for future teachers at the University of Arizona and an instructor for future administrators at the University of Phoenix. He has received the Arizona Teacher of the Year Award and was honored at the University of Arizona as a Distinguished Educator. 


High school Vice Principal at Seoul International School

Gray Macklin

High School Vice Principal

Mr. Macklin has served in a variety of capacities at SIS since 2006. When asked why he has stayed so long, he replies that he loves the challenges posed by the ambitious, demanding students at SIS.





Middle school and elementary school Vice Principal at Seoul International School

Agnes Schuppel

Elementary & Middle School Vice Principal

Agnes Schuppel has been at Seoul International School since 2009. This is her fourth year as the Assistant Principal of the Elementary and Middle School. Prior to being Assistant Principal, she worked as a classroom teacher, literacy coach, reading specialist and Elementary School Coordinator. Each day it is an honor and privilege to have the opportunity to work with our students, staff and parent community.

Curriculum coordinator at Seoul International School

David Coleman

Director of Curriculum and Professional Development

David Coleman first came to SIS in 2013 as part of the high school English department and joined the school's Leadership Team in 2017 as Director of Curriculum and Professional Development. In his 23 years in education, Mr. Coleman has served as a teacher leader, curriculum coordinator, accreditation specialist, and taught English and Journalism at the high school and college levels in both Colorado and Maine.

Kim Elisa Adams

Director of School Development

Kim Elisa Adams came to SIS in 2020. She has a Master's in Education. She has worked in schools in Japan, Minnesota, North Dakota, and Arizona. Her experiences range from Pre-K to College, but in the last 14 years, she has mainly worked at the Secondary Level. 

Dean of Admissions at Seoul International School

Irene De Shazo

Director of Admissions

Mrs. De Shazo joined Seoul International School in 2009 as the Reading Specialist. With a Masters Degree in Education Administration and English as a Second Language, she was appointed as the school's Director of Admissions in 2012.




Kelcey Edwards

Director of Guidance and College Counseling

Kelcey Edwards came to SIS in 2020. She has focused on the high school to college transition for more than 20 years through her work in various K12, higher education, and educational testing organizations.




Administrative Leadership Team

Director of Business Manager Office

Young Ok Chi

Business Manager

Director of General Affairs

Sung Chul Cha

Director of General Affairs

Director of Transportation

Sang Kyu Nam

Director of Transportation

Administration team director of academic affairs

Yang Min Ko

Director of Academic Affairs

Director of Finance and Accounting

Chung Youl Lee

Director of Finance and Accounting

Administrative leadership director of technology

Bum Shik Shin

Deputy Director of IT