Jamie Chambers is an American game designer who works primarily on role-playing games, contributing in a variety of genres. He served as Vice President of the non-profit Game Manufacturers Association, a trade association for the hobby games industry, from 2007 until 2016, when he chose not to seek re-election. He succeeded Marcus King for the post. Chambers worked with Margaret Weis at Sovereign Press in 1988, then transitioned with her to Margaret Weis Productions (MWP) where he served as Vice President and Lead Designer. While there, he created the Cortex System, a role-playing game ruleset that has been used by MWP since that time.

Margaret Edith Weis is an American fantasy and science fiction author of dozens of novels and short stories. At TSR, Inc., she teamed with Tracy Hickman to create the Dragonlance role-playing game (RPG) world. She is founding CEO and owner of Sovereign Press, Inc and Margaret Weis Productions, licensing several popular television and movie franchises to make RPG series in addition to their own.