Diocesan Boys' School
Chan Yu Sum Sam was born in Hong Kong. He attended Diocesan Preparatory School (currently known as Diocesan Boys' School Primary Division), the primary division of Diocesan Boys' School. Upon his parents' decision to immigrate to Vancouver, British Columbia, Canada, he left Hong Kong at the age of 10. Returning to Hong Kong at 16, he completed his studies at Chinese International School. He was then admitted into Kingston University, in England, and inspired by of his uncle who is a structural engineer, he went on to study architecture, from which he graduated in 2002. It was during his time in England when he grew passionate of theatre and dramatic arts.