Donald Esme C Calthrop (11 April 1888 – 15 July 1940) was an English stage and film actor. He starred as the title character in the hit musical The Boy in 1917. He then appeared in 63 films between 1916 and 1940, including five films directed by Alfred Hitchcock.He was born in London and died in Eton, Berkshire from a heart attack while he was filming Major Barbara.