Dr. Stein

Dr. Stein is presumably the lead scientist aboard the Hephaestus. He only speaks to the player once the altar is activated, ordering the player to return to the Hephaestus immediately for debriefing.

However, the order is swiftly changed when the Hephaestus is attacked. Dr. Stein warns the player to not return to the ship, stating that they have been suddenly over-run, and then communications are lost.

It is assumed Dr. Stein perished in the attack.