Brian J. Williams is an American stuntman, stunt actor, stunt double, and actor. He was the main stunt double for Brent Spiner on Star Trek: The Next Generation, four Star Trek films and Star Trek: Enterprise. He was also a regular stunt performer on Star Trek: Deep Space Nine, where he doubled actors such as Marc Alaimo, René Auberjonois, and Robert O'Reilly. He received no on-screen credit for most of his Star Trek television work.