Isambard Kingdom Brunel was an engineer and — in the words of the Eighth Doctor — "the man who built the modern world".
Alternate Timeline Edit
In an alternate 1843, the Eighth Doctor, Fitz Kreiner and Anji Kapoor met Brunel in a timeline created when the mysterious Eternines attempted to alter history, draining energy from Earth to sustain their own world. As a result of these changes, their agent, Jared Malahyde, offered Brunel some vital assistance in constructing his major projects in 1831, resulting in Brunel completing such projects as the Clifton Suspension Bridge earlier than in the original course of events. After meeting the Eighth Doctor and being saved from the Cleansing, Brunel was taken into the future that would result from these events. He sacrificed himself to give the Doctor to chance to undo this new history, erasing all memory of his encounter with the Doctor. (PROSE: Reckless Engineering)