A lieutenant in engineering aboard the Enterprise-E in Star Trek: First Contact, who follows Paul Porter into a Jefferies tube and becomes the second crew member assimilated by the Borg.
Eiger is an engineering officer of the Enterprise-E in 2373, seen in Star Trek: First Contact and played by Marnie McPhail. Her name appears only in the credits.
She is working with Paul Porter on a diagnostic of the environmental controls, which have begun raising the heat and humidity on the lower decks. Porter crawls into a Jefferies tube to look for the cause and does not come back. Eiger calls after him, goes in to look, and is seized in turn.
The Borg responsible have escaped from their sphere and are reshaping the ship to suit themselves. The two engineers are the first of many crew members turned into drones before Picard is forced to evacuate the ship.