Friedrich plays the role of Johannes Schlüter, a character who works absurd jobs in every episode (for example as speaker on women's rights for the Christian Social Union of Bavaria, bush pilot, or peddler of flags ready to be burned by protesters), and is interviewed by Kaupp.
Friedrich Nietzsche | Friedrich Schiller | Friedrich Engels | Carl Friedrich Gauss | Karl Friedrich Schinkel | Friedrich Dürrenmatt | Friedrich Hayek | Caspar David Friedrich | Georg Wilhelm Friedrich Hegel | Friedrich Hölderlin | Friedrich Gustav Jakob Henle | Friedrich Ebert | Friedrich Wilhelm Joseph Schelling | Karl Wilhelm Friedrich Schlegel | Friedrich Gulda | Friedrich Rückert | Friedrich Paulus | Johann Friedrich Böttger | Friedrich von Huene | Friedrich List | Friedrich | Christian Heinrich Friedrich Peters | Johann Friedrich Blumenbach | Friedrich Wilhelm Freiherr von Bülow | Friedrich Specht | Friedrich Schleiermacher | Friedrich Schlegel | Friedrich Karl Dörner | Friedrich Fröbel | Friedrich de la Motte Fouqué |