Ephraim Salt

Ephraim Salt was a billionaire entrepreneur in the early 21st century. In 2008, he was aboard his SkyPuncher spaceship on the first commercial spaceflight. However, by the orchestration of the Committee, all of the passengers and crew were drugged, the ship crashed into one of Salt's communications satellites, and it was headed for one of his office buildings when it was diverted by Ianto Jones and Zeynep. Zeynep suggested there might be survivors of the crash. (AUDIO: Fall to Earth)

Behind the scenes
Although Salt has a few lines in Fall to Earth, the voice actor went uncredited to keep the surprise of his still being alive.