Bruce "Invisible Custodian" Stone is one of the 12 Inhabitants of Balan Wonderworld. He is always picking up trash around his city and it is always reappearing the next day. It's no wonder that Bruce feels very helpless and invisible to the world around him.
Bruce is an elderly man with fair skin, white hair, and blue eyes. He wears a mauve overcoat over a tan vest and white button-up shirt. Upon his head is a black fedora, and he wears black pants and brown dress shoes. He also carries a brown walking cane.
Bruce is a kind elderly man who works to keep his city clean. However, as time goes on, he finds his efforts to be more and more futile. Underneath his frustrations, he merely wants what's best for others, and enjoys peace and quiet. Bruce loves picking up trash around the city. However, some people ignore him and put much more trash on the ground. This causes him to feel invisible and get corrupted.
- In the novel, his "name" while Wonderworld was under Lance's control was "Invisible Custodian".
- In the novel after the events of Wonderworld, he meets Iben Bia's son and picks up trash with him.
- "Hello, Clocktower Kid, Pensive Pierrot. How long has it been? And a pleasure to meet you, ah... Streetbeat." - Bruce's first words in the novel.
- "I've no idea why I have the name I have. The 'custodian' bit is spot on, at least. I make sure to keep these ruins spick-and-span." - Bruce, explaining his name and what he does on his stage to Leo.