Professor Owen Watson was the director of the Nunton Experimental Complex. He had a daughter named Susie.
When Sarah Jane Smith broke into the complex and took Eldrad's hand into the reactor room, Watson assumed that she was a terrorist intent on sabotage. However, he learned the truth from the Fourth Doctor, who also told him Eldrad's origins. This prompted Watson go order a nuclear strike on the complex to destroy Eldrad, but it was neutralised by Eldrad.
He then returned to the complex and attempted to shoot the regenerated Eldrad, but this also failed. Eldrad nearly killed Watson, but the Doctor convinced her to spare him. (TV: The Hand of Fear)
Behind the scenes
While the serial only identifies him as "Watson", the novelisation gives his first name as Owen.
