Gary L. Thomas

Gary L. Thomas is primarily an author and designer who worked on Dungeons & Dragons sourcebooks in the late 80s to the early 90s.

Adventures

 * Tales of the Outer Planes

Source books

 * Realmspace (sourcebook)
 * Monstrous Compendium Volume One
 * Monstrous Compendium Forgotten Realms Appendix (MC3)