Security Service, or MI5
Special Air Service (SAS)
Special Boat Service (SBS)
Special Reconnaissance Regiment (SRR)
Europe
Herr Ludwig Fritsch, banker at Vaduz Bank, Liechtenstein
USA
Graydon Bennett, State Department
Wesley Carter III, US Ambassador in London
Detective Sean Devlin of the NYPD
John Owen, Legal Attaché (FBI representative)
President of the United States of America (the POTUS)
Central Intelligence Agency (CIA)
Department of Homeland Security
Federal Bureau of Investigation, the Bureau (FBI)
Immigration and Customs Enforcement (ICE)
National Security Agency (NSA), based at Fort Meade
Special Activities Division (SAD)
Russia
Captain Pyotr Denisovich, captain of the Admiral Nakhimov
Yevgeni Krilov, head of the SVR at Yasenevo
Stepan Kukushkin, head of station of Krilov’s SVR unit in the Russian embassy in London
Oleg Politovski, deputy to Kukushkin
Ilya Stepanovich, former high-ranker in the Russian underworld, now billionaire
Viktor Ulyanov, Russian criminal in New York
Vladimir Vinogradov, former gang boss and professional criminal, now oligarch and billionaire living in London
Dmitri Volkov (Mr Burke), leader of Russian sleeper network in the UK
President of Russia (the Vozhd)
Yakovenko, Russian ambassador to UK
Bujar Zogu, Albanian killer contacted by Vinogradov