Gary Oldman character George Smiley
Colin Firth character Bill Haydon
Tom Hardy character Ricki Tarr
Mark Strong character Jim Prideaux
Ciarán Hinds character Roy Bland
Benedict Cumberbatch character Peter Guillam
David Dencik character Toby Esterhase
Stephen Graham character Jerry Westerby
Simon McBurney character Oliver Lacon
Toby Jones character Percy Alleline
John Hurt character Control
Kathy Burke character Connie Sachs
Roger Lloyd Pack character Mendel
Svetlana Khodchenkova character Irina
Arthur Nightingale character Bryant
John le Carré character Christmas Party Guest
Christian McKay character Mackelvore
Konstantin Khabenskiy character Polyakov
Linda Marlowe character Mrs McCraig
Michael Sarne character Karla (Voice)
Stuart Graham character Minister
Zoltán Mucsi character Magyar
Laura Carmichael character Sal
Amanda Fairbank-Hynes character Belinda
Ilona Kassai character Woman in Window
Imre Csuja character KGB Agent
Péter Kálloy Molnár character Hungarian Waiter
Peter O'Connor character Fawn
Jamie Thomas King character Kaspart
Philip Martin Brown character Tufty Thesinger
Rupert Procter character Guillam's Boyfriend
Katrina Vasilieva character Ann Smiley