David Suchet
— Alfred Verloc
Cheryl Campbell
— Winnie Verloc
Peter Capaldi
— Mr Vladimir
Warren Clarke
— Chief Inspector Heat
Janet Suzman
— Margaret, Duchess of Chester
Richard Stirling
— Stevie
Alfred Lynch
— The Professor
David Schofield
— Ossipon
John Benfield
— Michaelis
Patrick Malahide
— Assistant Commissioner
Stratford Johns
— Home Secretary
Fiona Mollison
— Annie
Doreen Mantle
— Mrs Waller
Nicholas Gecks
— Toodles
John Gabriel
— Yundt
David Ryall
— Wurme
Edmund Dehn
— Bertrand
Timothy Morand
— Rocas