James J. Haeck is the lead writer at D&D Beyond and the writer of many materials related to Dungeons & Dragons, including adventure modules such as Descent into Avernus and Waterdeep: Dragon Heist. He co-wrote the two Exandria campaign setting modules with Matthew Mercer and other writers.
Critical Role works
- Critical Role: Tal'Dorei Campaign Setting — co-writer
- Explorer's Guide to Wildemount — co-writer