If I forgot to add someone to this list please let me know.

Main developers, improvements, bug fixing:
Davide Anastasia			(Lead Project Mantainer & Mac OS X support)
<davideanastasia@users.sourceforge.net>

Daniel Kaneider 			(Windows Setup and Optimisation, Head of i18n Support)
<danielkaneider@users.sourceforge.net> 

Franco Comida				(Developer, Linux support, Maintainer Fedora Package)
<fcomida@users.sourceforge.net>

Bruce Guenter

Contributors:
Nicholas Phillips 			(MTB alignment code)
Douglas E. Warner 			(FC6 packager and bug reports)
Ignacy Gawedzki 			(tiff ldr bugfixes and suggestion)
Bertrand Petit 				(FreeBSD patch)
Sloan Poe 					(found and fixed bug regarding legacy actions signal)
Alexandre Prokoudine 		(gui improvements, desktop integration)
Arne Hagenah 				(various suggestions)
Frank Boehme 				(various suggestions)
Erik Ouchterlony
Antoine Latter
Markus Schmaus 				(found and fixed bug in Debevec and Robertson02)

Translators:
http://qtpfsgui.sourceforge.net/?page_id=23

Original author:
Giuseppe Rota <grota@sourceforge.net>
