The true story of Greville Wynne, the British businessman who doubled as a spy on his trips to Russia, and Colonel Penkovsky, the high-ranking Soviet Intelligence officer who passed key information to the West.
David Calder
Christopher Rozycki
Fiona Walker
Frederick Treves
Denys Hawthorne
Paul Geoffrey
Ed Bishop
Donald Burton
Philip Madoc
Alexander Davion
Stefan Gryff
George Roubicek
Guy Deghy
George Pravda
Peter Martin
Frank Duncan
Robert Pugh
John Rowe