David Suchet

as Alfred Verloc

Cheryl Campbell

as Winnie Verloc

Peter Capaldi

as Mr Vladimir

Warren Clarke

as Chief Inspector Heat

Janet Suzman

as Margaret, Duchess of Chester

Richard Stirling

as Stevie

Alfred Lynch

as The Professor

David Schofield

as Ossipon

John Benfield

as Michaelis

Patrick Malahide

as Assistant Commissioner

Stratford Johns

as Home Secretary

Fiona Mollison

as Annie

Doreen Mantle

as Mrs Waller

Nicholas Gecks

as Toodles

John Gabriel

as Yundt

David Ryall

as Wurme

Edmund Dehn

as Bertrand

Timothy Morand

as Rocas