John Sidney Blyth, better known as John Barrymore, was an American actor of stage and screen. He first gained fame as a handsome stage actor in light comedy, then high drama and culminating in groundbreaking portrayals in Shakespearean plays Hamlet and Richard III. His success continued with motion pictures in various genres in both the silent and sound eras. Barrymore's personal life has been the subject of much writing before and since his death in 1942. Today John Barrymore is known mostly for his portrayal of Hamlet and for his roles in movies like Dr Jekyll & Mr Hyde, Grand Hotel, Dinner at Eight, Twentieth Century, and Don Juan, the first ever feature length movie to use a Vitaphone sound-on-film soundtrack.
The most prominent member of a multi-generation theatrical dynasty, he was the brother of Lionel Barrymore and Ethel Barrymore, and was the paternal grandfather of Drew Barrymore.