Sir Arnold Robinson GCMG CVO MA (Oxon) is a fictional character in the 1980s British sitcom Yes Minister and its sequel, Yes, Prime Minister. He was played by John Nettleton. He attended Eton College, then Baillie College with Sir Humphrey Appleby and shares the same views on the running of the country, the government and the Civil Service; indeed, his role is often to provide counsel to Sir Humphrey when the latter is encountering difficulties in defeating Jim Hacker.