Agent Williams of the NID has cooperated with Agent Barrett and the SGC during the investigation into the activities of Ba'al and the Trust on Earth. When Ba'al gained control of Farrow-Marshall and threatened to detonate the Halcyon Tower in Seattle, Williams was part of Agent Barrett's NID team, and he coordinated with Daniel and the SGC by providing surveillance of Ba'al's hotel. The team was prepared to move in and capture Ba'al, unaware at the time that several Ba'al clones were present on Earth, and when Ba'al seemed to appear at another location, the team was ordered to abort so as not to compromise the operation.
Portrayed by: David MacInnis
Episode Reference: Ex Deus Machina