Dock Masters are Sangheili that are stationed on various States of Sanghelios. They maintain and control the State's shipyards, as well as track other vessels in or near their shipyard's system. In 2553, the Aanrar Dock Master expected the frigate Unflinching Resolve to be out of contact, but did not know that the occupants of the vessel were warriors from the Servants of Abiding Truth.
 List of appearances
- Halo: Glasslands (First appearance)
- ^ Halo: Glasslands, page 200