People of the Revolution and the USSR
- Vasil Petrov Kolarov Васил Петров Коларов Co-founder of Bulgarian communism, from the Comintern to head of state
- Solomon Abramovich Lozovsky Соломон Абрамович Лозовский The Bolshevik who led the Profintern and was shot with the Jewish Anti-Fascist Committee
- Serafima Ilyinichna Gopner Серафима Ильинична Гопнер First woman to lead the Ukrainian Bolshevik party; delegate to all seven Comintern congresses
- Otto Wille Kuusinen Otto Wille Kuusinen From Finnish labour leader to Comintern veteran and Khrushchev's theoretician
- Osip Aronovich Piatnitsky Осип Аронович Пятницкий From Comintern underground courier to its organizational backbone, then devoured by the machine he built
- Georgi Mihaylov Dimitrov Георги Михайлов Димитров From Leipzig defendant to Comintern General Secretary
- Grigory Yevseyevich Zinoviev Григорий Евсеевич Зиновьев He opposed October, vouched for Stalin, and was shot by him
- Lev Borisovich Kamenev Лев Борисович Каменев The party’s licensed voice of caution: his warnings outlived him
- Dmitry Zakharovich Manuilsky Дмитрий Захарович Мануильский ECCI secretary who carried out the Stalinist purges (1928–1943)
- Nikolai Ivanovich Bukharin Николай Иванович Бухарин The “favourite of the whole party,” killed in its name
- Vilgelm Georgiyevich Knorin Вильгельм Георгиевич Кнорин Architect of Comintern propaganda and party history compiler
- Pavel Aleksandrovich Mif Павел Александрович Миф Comintern China specialist who cultivated the 28 Bolsheviks