Marc Brunel

Marc Brunel was a scientist from Earth.

In 1820s, he was expected in a scientific meeting in Killingworth sponsored by Lord Ravensworth and hosting George Stephenson, among the others. The meeting was supposedly cancelled after the plots of the Rani and, thwarted by the Sixth Doctor. (TV: The Mark of the Rani)

The Sixth Doctor read his name in a collection of business cards of geniuses to consult for a problem of time slip. (TV: The Two Doctors)