A loyal member of S.H.I.E.L.D., Williams frequently assisted S.H.I.E.L.D. and the Avengers during Loki Laufeyson's attempted invasion of Earth. Upon Loki's Scepter activating, an evacuation of the S.H.I.E.L.D. base was called. Williams announced this evacuation over the intercom, taking care of issues such as being harassed by a group of chickens, and an impounded S.H.E.I.L.D. 4x4, the latter of which was solved by the intervention of Director Fury, Agent Hill and Agent Coulson. As Williams and Hill were passed by Hawkeye, Loki and Selvig, Fury informed Hill over the comms of Barton being compromised. Hill and Williams pursued Loki and his forces after repairing and modifying a S.H.I.E.L.D. 4x4, with Hill driving and Williams gunning. However, they were unsuccesful and Loki was able to escape. Preparing the runway for Captain America's arrival, Williams struggled with getting the runway lights to work, due to S.H.I.E.L.D's bizarre security measures. Eventually, Black Widow was able to use her stealth capabilities to set the runway up for Williams.