Suggest an edit21:30Abraham Sofaer, Ivor Barnard, Lewis Stringer. Cyril Gardiner in ' THE LOST WORLD'Light Programme Tue 8th Feb 1949, 21:30 on Light ProgrammeView in Radio Timesby Sir Arthur Conan Doyle. Adapted for broadcasting as a serial in six parts by Peggy Wells 2 —' Into the Unknown ' Produced by Ayton WhitakerContributorsUnknown:Sir Arthur Conan Doyle.Produced By:Ayton WhitakerNarrator:Richard WilliamsProfessor Summerlee:Ivor BarnardLord John Roxton:Cyril GardinerEdward Malone:Lewis StringerProfessor Challenger:Abraham SofaerZambo:Bryan PowleyGomez:Ian Sadler Source: Radio Times Suggest an edit