The actor passed away in his sleep on Saturday (06Aug11), his agent has confirmed.
An accomplished TV, film and stage performer, Wood began his career in 1952, when he landed his first film role in Stolen Face.
He went on to earn a name for himself onstage with a number of Royal Shakespeare Company productions, and he won a Tony Award in 1976 for his role in Tom Stoppard play Travesties. He later earned another two Tony nominations and one for an Olivier Award in 1997, for his turn in another Stoppard piece, The Invention of Love.
Wood's most notable film credits include WarGames (1983), Ladyhawke (1985), Ian McKellen's Richard III (1995), and 1994's The Madness of King George, while his TV work ranged from Kavanagh QC (1997) and Foyle's War (2004) to his most recent show, 2007's Lewis.
He was honoured by Queen Elizabeth II in 2007 when he was made a Commander of the British Empire (CBE) in recognition of his services to drama.