Jani (pronounced Yanee) the janitor is Joe's janitor for whenever or wherever he needs one. He has a negative janitor's kit to unclean everything with. He even has an unvacuum to help infuse everything with dust. He does not like wasting time at Joeschool to mess up after everyone, but Joe has other plans. He is good natured but has become insane after countless days of late working.
- He once had an epic battle with Jo Evil who was inventing a cleaning solution.