Dramatisation by Shaun McKenna of John le Carre's classic novel. George Smiley, called back from retirement, is reaching the end of his hunt to find the mole he believes is tearing the British Secret Intelligence Service apart. George Smiley ...... Simon Russell Beale Ann Smiley ...... Anna Chancellor Control ...... John Rowe Peter Guillam ...... Ewan Bailey Jim Prideaux ...... Anthony Calf Mendel ...... Kenneth Cranham Magyar ...... Peter Majer Ricki Tarr ...... Jamie Foreman Toby Esterhase ...... Sam Dale Bill Haydon ...... Michael Feast Karla ...... Philip Fox Polyakov ...... Stephen Greif Steve Mackelvore ...... Piers Wehner Mrs McCraig ...... Kate Layden Bill Roach ...... Ryan Watson This episode is available until 3.00pm on Sunday 2nd May as part of the Series Catch-up Trial.