The Ghost Engineers were a crew of Engineers that died on board the Derelict due to inhaling the black liquid. The crew originally planned to take off in the Derelict to destroy the life that they created on Earth with the black liquid.
The Ghost Engineers were seen when David, along with the rest of the Prometheus' crew, began touching buttons on board the Derelict. The crew began hearing strange stomping sounds soon before they saw the Ghost Engineers stomping an running through the corridor wearing their chair suits. The rest of the crew were frighted at the entities while David stood in the corridor and let one of the Engineer ghosts pass right through him. The crew soon followed one of the Ghost Engineers who tripped on a rock to a door where they found his body with his head decapitated. David managed to unlock the door where the crew found the Engineer's severed head.
David later discovers the Derelict and begins to press some of the buttons in the control room which caused more holograms of Engineers to project. David saw an Engineer play a flute-like instrument which caused more projects to be shown. After David held a project of the planet Earth in his hand, the projections were deactivated.
- The name of "Ghost Engineer" was given in the end credits of Prometheus. However, the Ghost Engineers were most likely just projections of footage recorded before they died and not actually ghosts.