character - Henry

character - Elder Councilman

character - Lord Bullock

character - Old Fritz Vincken (voice)

character - Dr. Arthur Summerlee

character - Dean Dewitt

character - Jeremiah Putter

character - Professor Arthur Summerlee

character - Summerlee

character - Mr. Reynolds

character - Summerlee

character - Henry Armitage

character - Sir Charles Devlin

character - Professeur du Conservatoire

character - Conference Doctor

character - Mark Thomas

character - Haywood

character - Hospital Patient

character - Dr. R. Roberts

character - Judge

character - Lord Rutherford

character - Professor Clemens

character - Bookish Man

character - Sir Cyril Sharpe

character - Dr. Hynd

character - Jonathan