Patrick Stewart

as Karla

Siân Phillips

as Annie Smiley

Alec Guinness

as George Smiley

Michael Jayston

as Peter Guillam

Bernard Hepton

as Toby Esterhase

George Sewell

as Mendel

Ian Richardson

as Bill Haydon

Michael Aldridge

as Percy Alleline

Terence Rigby

as Roy Bland

Alexander Knox

as Control