Suggest an edit12:00Abraham Sofaer. Ivor Barnard Lewis Stringer. Cyril Gardiner in ' THE LOST WORLD'Light Programme Thu 20th Oct 1949, 12:00 on Light ProgrammeView in Radio Timesby Sir Arthur Conan Doyle Adapted as a serial in six parts by Peggy Wells 5 — ' The Hidden Enemy' Produced by Ayton WhitakerContributorsUnknown:Sir Arthur Conan DoyleUnknown:Peggy WellsProduced By:Ayton WhitakerNarrator:Richard WilliamsLord John Roxton:Cyril GardinerEdward Malone:Lewis StringerProfessor Summerlee:Ivor BarnardProfessor Challenger:Abraham Sofaer Source: Radio Times Suggest an edit