Information from PlatinumQuest's credits. Currently active developers are in bold.
Jase
Spy47
MadMarioSkills
Moshe
Ian
Perishingflames
Jase
Leaf
Narvoxx
Seizure22
Popsip
Alex Swanson
Darkness Shadow
Jase
Ian
Mkbul
Lonestar
CyberFox
MadMarioSkills
Alex Swanson
Ben
Thistle