John Gielgud: John Gielgud. Actor: Arthur. Sir John Gielgud enjoyed a theatrical career that spanned 64 years, from a role in a 1924 London production of "The Constant Nymph" to the 1988 production of " Sir Sydney Cockerell: The Best of Friends", and a film career which began in 1924 and ended not long before his death. He played his first Hamlet in London in 1929, and was hailed by many as...