Dr. Williams was a 21st century Human. He was an expert on the history of suppressing wildfires by the United States government.
In an article about Los Angeles County wildfires in the January 21, 2024, issue of the Los Angeles Times, Dr. Williams gave his assessment of the government's attempts at suppression. He felt that the efforts had made the situation worse, as it had allowed for a greater accumulation of plant material than would have occurred if there had been no suppression. (PIC: "Watcher")
This character was only mentioned in writing.
A portion of the article seen in the episode is a copy of sections from the online document "What Makes California So Susceptible to Wildfires?", which is available from the eco-friendly fashion shop Earthling. The relevant sections were "Fire Suppression" and "Santa Ana Winds". The section which gave the full name of Williams and his occupation was not included in the article. [1]