1. Henry Ainley remained with Benson for two years, making his London debut at the Lyceum Theatre as the Duke of Gloster to Benson's king in Henry V, in a cast that featured Constance Benson, Leslie Faber, Harcourt Williams, Charles Doran and Oscar Asche.
Henry Ainley played Malvolio and Leontes under the direction of Granville-Barker and portrayed Hamlet several times, including a 1930 production that was chosen for a Royal Command Performance.
Henry Ainley played Robert Waring in The Shulamite at the Savoy Theatre in London in 1906.
Henry Ainley played Joseph Quinney in Quinneys on stage in 1915 and on film in 1919.
Henry Ainley starred in stage and radio productions of James Elroy Flecker's Hassan.
In 1921, Henry Ainley became a member of the council of the Royal Academy of Dramatic Arts and served as its president from 1931 to 1933.
In 1932, Henry Ainley was part of the effort to save the debt-laden Sadler's Wells theatre.
Henry Ainley had several children which include the actors Henry T Ainley, Richard Ainley, Anthony Ainley and Patsy Ainley.
Henry Ainley was the father of Henrietta Riddle who was briefly engaged to Alistair Cooke in 1932.
Henry Ainley made recordings for the Gramophone Company by the acoustic method, and later for the same company by electric recordings.