People of the Revolution and the USSR
- Sen Katayama 片山潜 Japanese communist founder who shook Plekhanov's hand and shaped Comintern East Asia strategy
- Fernand Loriot Fernand Loriot French socialist and teachers’ union activist who led the Committee for the Third International
- Vasil Petrov Kolarov Васил Петров Коларов Co-founder of Bulgarian communism, from the Comintern to head of state
- Alfred Rosmer Alfred Rosmer From syndicalism through the Comintern to the Fourth International: a French internationalist across a century of revolution
- Angelica Isaakovna Balabanova Анжелика Исааковна Балабанова The Comintern's first secretary, who taught Mussolini and branded him traitor
- Georgi Mihaylov Dimitrov Георги Михайлов Димитров From Leipzig defendant to Comintern General Secretary
- Fritz Platten Fritz Platten Swiss communist who organised Lenin’s sealed-train journey in 1917 and sat on the Comintern’s founding presidium
- Henk Sneevliet Henk Sneevliet The Dutch revolutionary who planted communist seeds in Indonesia and China, then fought both Stalinism and Nazism
- Mikhail Markovich Borodin Михаил Маркович Бородин Sun Yat-sen's political advisor, architect of the First United Front, and the Comintern's global emissary
- Manabendra Nath Roy মানবেন্দ্র নাথ রায় The Indian Marxist who debated Lenin on colonial revolution
- Willi Münzenberg Willi Münzenberg The 'Red Millionaire' who exposed Nazi terror through publishing, the Comintern's greatest propagandist, who broke with Stalin
- Grigory Naumovich Voitinsky Григорий Наумович Войтинский The Comintern's first envoy who midwifed the Chinese Communist Party
- Otto Braun Otto Braun “Li De”, the only Westerner on the Long March and the Comintern military adviser blamed at Zunyi
- Najati Sidqi نجاتي صدقي Palestinian activist linking anti-colonialism and anti-fascism