Fishbone currently consists of:

Angelo Christopher Moore: Vocals, Saxes, Theremin, Cuica
John Norwood Fisher: Bass
Walter Adam Kibby II: Vocals, 3 Valve Brass
Spacey T: Guitar.
John Steward: Drums
John McKnight: Keyboard, Trombone, Guitar

Past members of Fishbone are:

Deion -Drums. Another replacement.
Cameron Clinton -Drums. Fish's temporary replacement.
Anthony Brewster -Keyboards. Started around March of 1997. Anthony was the keyboardist for The Untouchables [1980's ska band].
Phillip Fish Fisher -Drums
John Bigham -Guitar- left around late March of 1997.
Christopher Gordon Dowd -vocals, keyboards, trombone- left May of 1994
Kendall Rey Jones -guitar- left around May of 1993, right before the Lollapalooza tour.