Who was the butler in the 70s British TV series "Upstairs Downstairs"?

Angus Hudson is a fictional character from the ITV drama Upstairs, Downstairs, portrayed by actor Gordon Jackson from 1971 until 1975.

Hudson was the authoritarian Scottish butler of the Bellamy household at 165 Eaton Place, Belgravia, London. Hudson was a featured character in sixty episodes from 1971 until 1975 (1903 - 1930 in the series' timeline; although it was later established that both Hudson and Mrs. Kate Bridges the cook had served the Bellamys since the late 1870s or early 1880s, being there before the subsequent births of both James Bellamy and Elizabeth Bellamy).

Hudson was a well-educated man from a working-class background; and although a bit bigoted in some of his attitudes (particularly towards Germans), he was essentially a fair, just and good-hearted man. He displays, on occasions, a sense of humour and could be seen joking with the other staff and even discussing football matches with Edward the footman. His talents lay in the organisation of the staff, his theological knowledge and also his fine handwriting, considered to be a great art, as demonstrated each Christmas when sending cards to friends and his brother in Scotland.