He is known for his role as an Assistant District Attorney and, later, Special Prosecutor Lawrence D. Barrington in the television programs Mickey Spillane's Mike Hammer, and The New Mike Hammer. Williams reunited with Stacy Keach in 1997 when a new Mike Hammer syndicated television show was released under the title Mike Hammer, Private Eye.
He is recognized for his role as an Assistant District Attorney and, subsequently, Special Prosecutor Lawrence D. Barrington in television series Mickey Spillane's Mike Hammer and The New Mike Hammer. Williams reconnected with Stacy Keach in 1997 when a new Mike Hammer syndicated television show was released under the title Mike Hammer, Private Eye.