James Robertson Justice (15 June 1907 – 2 July 1975) was an English actor. He often portrayed pompous authority figures in comedies, including each of the seven films in the Doctor series. He also co-starred with Gregory Peck in several adventure movies, notably The Guns of Navarone. Born in south-east London to a Scottish father, he became prominent in Scottish public life, helping to launch Scottish Television (STV) and serving as Rector of the University of Edinburgh (1957–60 and 1963–66).
Source : Wikipedia