John Schlesinger Director James Fox Sir Anthony Blunt Actor Prunella Scales H.M.Q. Actor David Calder Chubb Actor Gregory Floy Radiologist Actor Geoffrey Palmer Donleavy Actor Edward de Souza Collins Actor Jason Flemyng Colin Actor John Cater Restorer Actor Richard Bebb Consultant Actor Ann Beach Mrs. Chubb Actor Julia St. John Receptionist Actor Mark Payton Phillips Actor Anne Jameson Blunt's Secretary Actor Barbara Hicks Lady at National Gallery Actor