Colonel Viktor Kosov: A high-ranking Russian intelligence officer who is in charge of the operation to steal the plans for the Trident missile system.
General Anatoly Grigorenko: The head of the Russian military intelligence agency, the GRU.
Prime Minister Margaret Thatcher: The Prime Minister of the United Kingdom, who is determined to stop the Russians from stealing the Trident plans.
Alexander Karasov: A Russian spy who is posing as a British businessman.
Yuri Tarakanov: A Russian spy who is posing as a French journalist.
Vladimir Pushkin: A Russian spy who is posing as a British diplomat.
Colonel Mikhail Gorbachev: A Russian spy who is posing as a Soviet military attache.
General Nikolai Ogarkov: The Chief of the General Staff of the Soviet Armed Forces.
Leonid Brezhnev: The General Secretary of the Communist Party of the Soviet Union.