Rex KOO, a Hong Kong visual artist, whose works across a diverse range of mediums, including graphic design, typography, illustration, and comics. Rex’s creations are always inspired by pop culture, particularly films and music. He has published several picture books featured on Hong Kong films.

In 2020, he created his first personal comic named “Strange Tales of the Walled City”, which won a Bronze Award at the 14th Japan International MANGA Award. In 2025, Rex published his second comic named “Nobody in Walled City”, which story set a scene of Ice Age in Hong Kong. This comic also awarded the Special Mention of Comic Category for Young Adult at the BolognaRagzzi Award 2026.