Dusan Popov

M15 code name-tricycle, skoot

M15 case officer-Billy Luke Ian Wilson

Abwer code name- Ivan Ludovico von

Abwer case officers- Karsthoff, Jonny Jebson

elvira de la fuente chaudoir

M15 code name- Bronx

M15 case officer- Hugh Astor

Abwer code name- Dorette Helmut

Abwer case officers-Brendt Schluetter

Lily Sergeyev

M15 code name- Treasure

M15 case officer-Mary Sherer

Abwer code name- Solange, Tramp

Abwer case officers- Emile Klieman

Roman Czerniawski

M15 code name-Brutus

M15 case officer-Christopher Harmer, Hugh Astor

Abwer code name- Hubert

Abwer case officers-Oscar Reile

Lily Sergeyev, a Frenchwoman of White Russian origin, had agreed to come to England as a double agent on condition that her beloved little dog, Babs, was smuggled in for her by MI5. When MI5 failed to do that, she was so angry she looked for revenge. Lily believed Babs had been sacrificed by MI5 – had been killed as a convenient solution to Lily’s nagging and threats about ceasing to mislead German Intelligence. We can never truly understand the close relationship Lily had with her dog. We have all had a dog or maybe lost one but every day Lily was reminded that the double cross system she worked for double crossed her.

Roman Czerniawski was born on 6 February 1910. When the war started  Roman Czerniawski was hired as a captain in the Polish Air Force. He was ordered to leave Warsaw for Romania. He was assigned as an intelligence officer with the 1st Polish Division of Grenadiers. After having been offered safety by the Germans, he was sent to England as an agent. However, he made himself known to the British authorities. He was de-briefed by the British (MI6) and Polish authorities about the security lapses of his organization in France. He was then employed as a double agent by MI5 using the codename "Brutus" (after Caesar's friend and assassin) under their Double Cross System. His strong anti-Russian attitude, manifested in the denouncing of a Polish officer who attended an official reception at the Soviet Embassy through pamphleting, led to doubts about his suitability. For this act of mutiny against the Polish authorities he was arrested and imprisioned. MI5 produced a cover story that his had been detained in a sweep of "anti-Bolshevik" Poles