Kelsall then made an appearance as "MacCauley" in Errol Flynn's 1953 Scottish swashbuckler, The Master of Ballantrae, and, in the same year, played Commander Dawson in the wartime POW movie, Albert R.N., about the use of a dummy to disguise the escape of a prisoner. From then until 1956, he made seven more films, before switching to television once more, appearing in "The Quarrel", episode 2 of the six-part BBC adaptation of Robert Louis Stevenson's Kidnapped, which starred Patrick Troughton, and in which Kelsall played Cluny Macpherson (he would also go on to play a more prominent character, Prestongrange, in four of eleven episodes of the re-make of the same series by BBC television in 1963).