He was present when Jon locked himself in the Intrinsic field subtractor chamber while the generators were warming up for the afternoon experiment. Terrified, he explained that the time lock on the door can't be overridden.
He sponsored Dr. Manhattan after his rebirth. When he became public, he was pressed by a journalist for a quote, and he said "God exists, and he's American" which was later misquoted and toned down as "Superman exists, and he's American". He was seen photographed outside the Gila Flats with Jon and other officials. He also was present in Washington when Jon shook hands with John F. Kennedy.
His misgivings over the existence of this godlike being led him to write Dr. Manhattan: Super-powers and the Super-powers. He was skeptical whether Dr. Manhattan could be used as a superweapon by the USA; in his book he noted that the arms race had intensified, and when cornered, the Soviets would resolve to Mutually Assured Destruction. He also knew that Manhattan would be unable to destroy all warheads coming from Russia; those left out would be enough to annihilate life in the hemisphere.
All his scenes and lines are given to Wally Weaver.