|Real Name||Charles Gray|
|Albums played on||The Return of the Aquabats, The Fury of the Aquabats!|
Ultra Kyu (also known as Mysterious Kyu) was a guitarist for The Aquabats from 1994 to 2000.
The Return Of The Aquabats
- The "9the" Man.
The Fury Of The Aquabats
- Secret weapon, Sultan of suspense
The Aquabats Vs. The Floating Eye of Death
- Levitation, Escapist
- Charles Gray went on to pursue a career in Opera in New York