James J. Haeck is a co-writer of the Exandria campaign and adventure modules. He wrote many materials related to Dungeons & Dragons, including adventure modules such as Descent into Avernus and Waterdeep: Dragon Heist. They were the lead writer at D&D Beyond until January 2021.
Critical Role works
- Critical Role: Tal'Dorei Campaign Setting — co-writer
- Explorer's Guide to Wildemount — co-writer
- Tal'Dorei Campaign Setting Reborn — co-writer
- Call of the Netherdeep — co-writer