Two other names of relative impact are Xenozypher and Joker ... I know that the two are not exactly held in the highest regard for one reason or another, but they were part of the project and did contribute. XD

Xenozypher - Early days of reverse engineering packets and writing the first core; parted ways due to disagreements on Core development I believe.
Joker - Early lead developer & scumbag who ran off with the donation bag

It's been 17 years, so my memory could be a little hazy.