The sudden departure of Barry Evans from the 'Doctor' series must have sent its producers in a spin. The young actor had made 'Michael Upton' his own to such an extent it was impossible to imagine anyone else in the role. He cited the pressure of work as his main reason for leaving ( although he later regretted the decision ).
Rather than create a new leading character, it was decided to bring back the cheeky, girl-chasing 'Duncan Waring', last seen in the finale of 'Doctor In The House'.
'Waring' was a more extroverted figure than his predecessor, fond of spotted bow-ties, laughing raucously, and going "Hello dere!" whenever he answered a phone. Nedwell was particularly adept at physical comedy too, giving the show greater appeal to the young. It did not take him long to replace Evans in the public's affections.
In 'The Devil You Know', Waring returns to St. Swithins, having been in America for the past year. His friends Collier and Stuart-Clark pretend not to remember him! It was said that Upton had joined the Merchant Navy to escape the attentions of Nurse Willett following a drunken proposal!
St. Swithins hospital once again became the backbone of the series' plots, with Professor Loftus and Bingham appearing regularly. Once again, Graeme Garden and Bill Oddie delivered some fine scripts, along with George Layton ( now credited under his real name ) and Jonathan Lynn, Graham Chapman and Bernard McKenna.
Two story arcs occurred through the season; in one, the dreaded Bingham met and courted the fearsome Dr.Mary Parsons ( Helen Fraser ), an old flame of Duncan's. In the other, Loftus was tipped for a knighthood ( which he duly got ).
Among the many hilarious episodes to be found in this twenty four part series are 'A Night With The Dead' in which Dick and Bingham join forces to prevent Duncan from winning a bet, namely that he cannot spend a night alone in a mortuary; Dick tries to join the Freemasons in 'Climbing The Ladder', and, my favourite, 'Honeymoon Special', the latter boasting one of the all-time classic television comedy moments, as Duncan's car breaks down on a level crossing.
Bob Todd, Jimmy Logan, William Franklyn, and a pre-'Blackadder' Tony Robinson join in the fun.