Leadership Team

The school employs approximately 100 teachers, 48 teaching assistants, and 40 non-teaching staff. All teachers have university degrees and a teaching qualification.


Senior Leadership Team

Paul Tough, Principal

Paul is originally from South Wales in the UK and is a first language Welsh speaker. At university, Paul studied the Humanities and has a Master of Arts degree from Cardiff University and a Post Graduate Certificate in Education from Swansea University. Paul has worked in international school education since 1999 and has over fifteen years of senior leadership experience derived from three international schools in Hong Kong – Island School, West Island School (WIS) and Discovery Bay International School (DBIS). Paul was Deputy Head at WIS for eight years and most recently Head of School at DBIS for five years. Paul is committed to inclusion in education and ensuring that all students are challenged and supported in their learning. In addition to his passion for history and politics, he enjoys long-distance running, rugby and football.

Eleanor Loran, Head of Primary

Eleanor has 20 years’ experience in education which includes teaching experiences in schools within the UK, New Zealand and most recently in Hong Kong. Eleanor undertook a BA in Media Management from Trinity and All Saints College in Leeds, followed by a Primary Certificate of Education from St. Martin’s College, Lancaster University. Recently, Eleanor has completed an MA in Early Childhood Education from The University of Sheffield. Previously the Head of an infant school in Hong Kong, Eleanor strongly believes in every child being capable and competent learners and having the opportunities to demonstrate this in their own unique ways. Her own interests include hockey, swimming and lots of outdoor adventures with her three young boys.

James Anthony Thomas, Head of Secondary

James studied in the UK at St Paul’s School, London and then went on to receive an MA in Theology from Trinity Hall, Cambridge University. He has previously been a Head of Department in the UK at both Dulwich College and Wellington College, where he was in charge of Oxford and Cambridge applications. He was then the first Director of Studies at Harrow International School Hong Kong before arriving at BST in August 2014. He has an MA in Educational Leadership from the University of London, has completed the NPQH (National Professional Qualification for Headship) and is also a trained ISI Inspector and COBIS Peer Accreditor. He is married to Katherine, with whom he has three young children (the eldest two of whom are in BST Primary) and a Labrador.

Noriko Kosugi, Bursar

Noriko has a BA in Law from the University of Tokyo and an MBA from Temple University. Her career background is mainly the manufacturing industry and the real estate industry. She has previously worked at JFE Holdings, Molex, Imerys and Unizo Holdings, mainly in Finance and Business Management fields. Before joining BST in 2020, she was a board director of Unizo Holdings. She is married and has a son and a Norfolk terrier.



Ben Loran, Director of Operations

Ben is originally from the UK and studied History at Middlesex University. He has a Master of Science degree from Leicester University in Educational Leadership. Having taught in London, Auckland, Hong Kong, and now in Tokyo, Ben places great importance on ensuring school communities are internationally minded. Ben has worked in International school education since 2006 and has senior leadership experience from schools in both New Zealand and Hong Kong. Ben was most recently Whole School Deputy Head at Discovery Bay International School (DBIS). Ben is committed to inclusive, holistic education that provides meaningful experiences for all students. In addition to spending time with his wife and three sons, he enjoys running, mountain biking, skiing and football.


Educational Leadership Team


Karl Wilcox, Deputy Head of Primary

Karl is from Cornwall in the UK. He studied at Swansea University for a BSc in Marine Biology and a PGCE. He has an MBA in educational leadership from the University of Leicester. Karl has taught in the UK, Indonesia and Singapore. His last position was the founding vice principal of UWCSEA East in Singapore. Karl is passionate about holistic education and the development of emotional intelligence and is an advocate for sustainable living practices. Karl is a keen surfer and yoga practitioner. He is married to Georgina and has a son, Tiago.


Mark Pearce, Deputy Head of Shibuya

Mark is originally from Bristol in the UK. He studied History at Bath College and undertook his PGCE at Roehampton University in London. Previous to joining BST, Mark spent 12 years working for Dulwich College International as Director of Additional Educational Needs (Dulwich Shanghai) and Head of Student Support Services (Dulwich Singapore). Mark is passionate about inclusive education and student wellbeing. He is a qualified SENCo and is currently studying for a Masters in School Leadership of Mental Health and Wellbeing from Leeds Beckett University. Mark's interests include travel, film and learning the guitar. He joined BST in August 2019 with his wife Andrea and his two children Joel and Ella.


Duncan Grey, Deputy Head of Secondary

Duncan received a BSc (Hons) in PE and Sports Science at Loughborough University, before gaining his PGCE from the University of Bath.  Having spent his early teaching career in Nottingham, he then moved to the British School Muscat, in Oman, where he spent three years as Director of Sport and seven years as Deputy Headteacher.  Duncan is passionate about sport’s capacity to motivate, energise and bring people together and, as such, enjoys participating in a wide variety of physical activities, including rugby and long distance running.  Duncan has recently moved to Tokyo with his wife Lisa and their two young children.


Caroline McCallum, Deputy Head of Secondary

Caroline graduated from Liverpool University with a B.Des(Hons) and completed her PGCE at Brighton University. She spent her early career working in schools in the south of the UK teaching Art before relocating to Scotland. Her previous position was Deputy Head at Gordonstoun, a boarding school on the north east coast of Scotland, where she was also a volunteer for HM Coastguards. Caroline is currently completing her Masters dissertation focusing on school leadership and is passionate about teaching and learning, cognitive psychology and professional development in education. She recently moved to Tokyo with her husband Dave and younger son, Baxter, with her oldest son remaining at university in the UK.