Character Dr. Jonas Wikipedia: Dr. Jonas (link not verified) 1954 ◢ Played by Colin Drake once on Television in '1954 Sheldon Reynolds TV'. 06 Dec 1954:'The Case of the Blind Man's Bluff' 1980 ▷ Played by Paul Hardwick once on Television in 'Sherlock Holmes and Doctor Watson'. 1980:'The Case of the Blind Man's Bluff'