Engineer O'Brian

Ltn. Commander Johnathan O'Brian was the Chief Engineer of the USS Bellerophon.

His signal was the one picked up by the USS Nightingale and USS Astartes, leading to the eventual rescue attempt by both vessels. But it was too late for O'Brian.

O'Brian, pinned under debris when help arrives, is beamed into the Nightingale's Teleportation Bay and the removal of the pressure from the debris causes him to bleed out on the pad. Excelsior Jones attempts to help but is not proficient in first aid.