Dramatisation by Shaun McKenna of John le Carre's classic novel. George Smiley, called back from retirement, tries to piece together the events of the past to find the mole he believes is tearing apart the British Secret Intelligence Service. George Smiley ...... Simon Russell Beale Ann Smiley ...... Anna Chancellor Control ...... John Rowe Peter Guillam ...... Ewan Bailey Percy Alleline ...... Bill Paterson Ricki Tarr ...... Jamie Foreman Toby Esterhase ...... Sam Dale Bill Haydon ...... Michael Feast Roy Bland...... David Hargreaves Sam Collins ...... Nicholas Boulton This episode is available until 3.00pm on Sunday 2nd May as part of the Series Catch-up Trial.