Stephen Herbert Perrin (born January 22, 1946) is a game designer who has written game materials for Chaosium and TSR. He is probably most famous for creating the role-playing game RuneQuest along with the role-playing games Stormbringer, Worlds of Wonder, Elfquest, and Superworld while also at Chaosium. He has also worked for Interplay Productions, Maxis, Spectrum Holobyte, FASA, Hero Games, West End Games, and Iron Crown Enterprises.
Perrin has a bachelor's degree from San Francisco State University and has recently been living in Fountain Valley, California.
A microbadge is available: 
Periodical Interviews
Interview With Steve Perrin, RPG Review (Issue 1 - Sep 2008).