
Aaron Dale Allston was an American game designer and author of many science fiction books, notably Star Wars novels. His works as a game designer include game supplements for role-playing games, several of which served to establish the basis for products and subsequent development of TSR's Dungeons & Dragons game setting Mystara. His later works as a novelist include those of the X-Wing series: Wraith Squadron, Iron Fist, Solo Command, Starfighters of Adumar, and Mercy Kill. He wrote two entries in the New Jedi Order series: Enemy Lines I: Rebel Dream and Enemy Lines II: Rebel Stand. Allston wrote three of the nine Legacy of the Force novels: Betrayal, Exile, and Fury, and three of the nine Fate of the Jedi novels: Outcast, Backlash, and Conviction.

Keith Baker is a game designer and fantasy novel author. In addition to working with Wizards of the Coast on the creation of Eberron, he has also contributed material for Goodman Games, Paizo Publishing and Green Ronin Publishing.

Emily Care Boss is an indie roleplaying game designer, theorist and publisher. She was a foundational member of The Forge, an early leader in the indie role-playing game movement and is considered the creator of the American Freeform genre of roleplaying games, which combine indie RPG principles and mechanics with Nordic freeform and American chamber live action role-playing techniques. Her game, Under My Skin was winner of the Audience Choice Award at Fastaval 2009. She has been referred to as the "Dean" of the North American school of structured freeform game design.

Paul Czege is a designer of tabletop role-playing games. His My Life With Master was the third role-playing game to win the Diana Jones award. He is also the originator of the Czege Principle that states, "When one person is the author of both the character's adversity and its resolution, play isn't fun."
Marcelo Del Debbio is a Brazilian architect and writer, with specialization in semiotics, History of Art and World Religion, best known from his several works in Role Playing Games, comparative mythology, comparative religion, esoteric and masonic texts.

Gwendolyn Faith Hunter is an American author and blogger, writing in the fantasy and thriller genres. She writes as Faith Hunter in the fantasy genre, and as Gwen Hunter in the thriller genre. She also has collaborated on thrillers with Gary Leveille, jointly using the name Gary Hunter. Hunter is one of the founding members of the blog, MagicalWords.net, a writer assistance blog, and has developed a role-playing game based on her Rogue Mage series.

Steve Jackson is an American game designer. His notable creations include the role-playing game GURPS and the card game Munchkin.

Marc William Miller is a wargame and role-playing game designer and author.

Kevin Andrew Murphy is an American novelist and game writer from Northern California.

Kevin Siembieda is an American artist, writer, designer and publisher of role-playing games.