Harold Lewis

Harold Lewis was a Captain aboard the UNSC during the Callisto Incident.

Hunt
After the was captured by Insurrectionists, the UNSC sent the UNSC Las Vegas, the, and the  to hunt it down. The ships' crews were completely inexperienced, and had never fired their weapons in combat before.

Death
On March 2, 2494, they encountered the Callisto in the 26 Draconis System. The three UNSC ships fired six of their seven Ares missiles, and in response, the now Insurrectionist-controlled ship maneuvered behind an asteroid, which it then detonated in the direction of the UNSC vessels using a nuclear warhead planted beforehand. The Las Vegas was seriously damaged, and Lewis was killed by the explosion, along with nearly all of the bridge crew.