Ernest George Harcourt Williams (30 March 1880 – 13 December 1957) was an English actor and director. After early experience in touring companies he established himself as a character actor and director in the West End. From 1929 to 1934 he was director of The Old Vic theatre company; among the actors he recruited were John Gielgud and Ralph Richardson. After directing some fifty plays he resigned the directorship of the Old Vic but continued to appear in the company's productions throughout the rest of his career. He appeared in thirty cinema and television roles during his later years.
Williams was born in Croydon, London, the son of John Williams, a merchant. He was educated at Beckenham Abbey and Whitgift Grammar School, Croydon. After taking drama lessons he joined Frank Benson's touring company in 1897. He remained with Benson for five years, and made his London debut at the Lyceum in 1900, playing Sir Thomas Grey in Henry V. He then worked for three other companies, including that of Ellen Terry, which he joined in 1903.
In 1906 Williams made his American debut, with H B Irving, touring the US for a year. After returning to Britain he was in George Alexander's company before returning for another period with Irving. He married the actress Jean Sterling Mackinlay in 1908. Their son John Sterling became a well-known pianist.
One of Williams's most notable parts of this period was General Lee in John Drinkwater's Abraham Lincoln in 1919; he later switched to the role of the Chronicler in the same production. In 1922, in Mary Stuart by Drinkwater, he was "exquisitely repulsive" as Darnley. In a third historical drama by the same author he was John Hampden in Oliver Cromwell at His Majesty's in 1923, to the Cromwell of Henry Ainley. In 1923 he directed G K Chesterton's play Magic at the Everyman Theatre. In 1926 he appeared in John Barrymore's production of Hamlet at the Haymarket Theatre, as the Player King.