Patrick Troughton (in-universe)

Patrick Troughton was an actor in the 20th century.

Paul Magrs once wrote in a prose piece that the Second Doctor was Patrick Thoughton. (PROSE: Bafflement and Devotion)

In one point of his career, Troughton portrayed Robin Hood. A photograph of his role was later seen on a spaceship database. (TV: Robot of Sherwood)

Information from invalid sources
In his home, Sardoth owned a DVD copy of Fury from the Deep which had Patrick Troughton on the cover. (NOTVALID: Eye on... Blatchford)