C.M. Pennington-Richards Director, Writer Ian Carmichael Jack Actor Janette Scott Peggy Actor Sid James Sid Actor Liz Fraser Sandra Actor Dennis Price Watson Actor Reginald Beckwith Harper Actor Irene Handl Mrs. Harper Actor Noel Purcell O'Malley Actor Naunton Wayne 1st Thames Conservancy Officer Actor Bill Shine 2nd Thames Conservancy Officer Actor Michael Shepley Granville-Carter Actor Toby Perkins Pukka Type Actor Miles Malleson Reverend Thomas Actor Jacques Cey French Official Actor Graham Stark Flowerman Actor Gladys Henson Madame de Sola Actor George H. Brown Producer Jan Darnley-Smith Associate Producer