Mr. H. Liston, Mimic, Ventriloquist and Character Delineator, late 19th century. London stage act. Egyptian Hall (Drawing Room), Piccadilly...Last Week - Positively Closing Jan. 4...In his humorous Entertainment, pronounced by the London Press unequalled, "Merry Moments". Harry Liston (born John Greenhough,1843-1929) was a British comedian and actor who appeared in music hall, variety shows and other entertainments during the Victorian era and in the first decades of the 20th century.