Parker Livingsteen was the recording studio supervisor for Vault 92's musicians.
Livingsteen was one of the first to discover clues as to the real purpose of Vault 92, though he never knew it. He quickly uncovered a rogue element in the sound studio that was leaking into the recording banks, but never identified it as white noise used for the purposes of brainwashing. He was involved in a relationship with Hilda Egglebrecht and they were meeting in the recording studio when they were both killed by brainwashed citizens.
This character is mentioned in Fallout 3 but does not actually appear in the game.