Jef Aldrich is a professional podcaster from San Diego. Along with Jon Taylor, he has been building a podcast brand outside of the big network channels. Jef started entertaining people as a Sea World tour guide and eventually just started being funny for a living on his own. Jef is the coauthor of Düngeonmeister, The Düngeonmeister Goblin Quest Coloring Book, The Düngeonmeister Cookbook, and Düngeonmeister: The Random Monster Generator. He is also a cocreator and cohost of the System Mastery podcast with Jon where they review and comment on odd classic RPGs, poking fun at obscure stories and systems while taking the game for a spin.

Jon Taylor is a professional podcaster from San Diego. He has a degree in English Literature from UC Santa Cruz. He spent several years as a stand-up comic on the East Coast before moving back to Southern California. Jon is the coauthor of Düngeonmeister, The Düngeonmeister Goblin Quest Coloring Book, The Düngeonmeister Cookbook, Düngeonmeister: The Deck of Many Drinks, and Düngeonmeister: The Random Monster Generator. Jon is also a cocreator and cohost of the System Mastery podcast with Jef Aldrich where they review and comment on odd classic RPGs, poking fun at obscure stories and systems while taking the game for a spin.