Mister ZZZ is a Gotham gangster who appears half-asleep, thus his name. Although being asleep, he is fully alert of his surroundings as his condition allows him to frequently catch people who have never encountered him before by surprise.
- Gang Leader: Despite his narcolepsy he is fully alert and has proven to be one of Gotham's most notorious gangsters.
- Narcolepsy: Mr. ZZZ suffers from an unusual case of Narcolepsy which causes him to be in a half sleep half waking state all the time.
- 10 Appearances of Mister ZZZ (New Earth)
- 4 Images featuring Mister ZZZ (New Earth)
- Quotations by or about Mister ZZZ (New Earth)
- Character Gallery: Mister ZZZ (New Earth)