History of character is unknown.
- This version of the character is exclusive to the continuity of the television series Young Justice and is an adaptation of Ubu. The original character was created by Dennis O'Neil and Neal Adams and first appeared in Batman #232.
- Ubu was voiced by Fred Tatasciore.
- 4 Appearances of Ubu (Earth-16)
- 1 Images featuring Ubu (Earth-16)
- Quotations by or about Ubu (Earth-16)
- Character Gallery: Ubu (Earth-16)