This episode features Alexander Fleming, Robert Koch, Ilya Ilyich Mechnikov, Paul Ehrlich, Frederick Grant Banting, John James, Rickard Macleod, and many others.

This episode features Albert Einstein, Pierre Curie, Marie Curie, Antoine Henri Becquerel, Isamu Akasaki, Saul Perlmutter, Andre Geim, and many others.

This episode features Lech Wałęsa, 14th Dalai Lama, Mikhail Sergeyevich Gorbachev, Nelson Rolihlahla Mandela, Yasser Arafat, Kofi Annan and many others.

This episode features Malālah Yūsafzay, the European Union (EU), Muhammad Yunus, Rigoberta Menchú Tum, Jody Williams, Bertrand Russell and many others.

This episode features Sir Winston Leonard Spencer-Churchill, Ernest Miller Hemingway, Boris Pasternak, Aleksandr Solzhenitsyn, Gabriel García Márquez and many others.