Karl Marx | Karl Pilkington | Karl Lagerfeld | Karl G. Heider | Karl Rove | Karl Pearson | Karl May | Karl Liebknecht | Karl Friedrich Schinkel | Karl Dönitz | Karl Jenkins | Karl Stefanovic | Karl Bodmer | Karl Wilhelm Friedrich Schlegel | Karl Malone | Karl Wolf | Karl Valentin | Karl Popper | Karl Malden | Karl Kesel | Karl Barth | Alfredo Kraus | Karl Richard Lepsius | Karl Philipp von Wrede | Karl Kautsky | Karl Johans gate | Karl-Heinz Kämmerling | Karl | Karl Weierstrass | Karl Story |
Regular guests of the Café in the early twentieth century included: Peter Altenberg, Alban Berg, Hermann Broch, Elias Canetti, Gustav Klimt, Oskar Kokoschka, Karl Kraus, Franz Lehár, Robert Musil, Leo Perutz, Joseph Roth, Roda Roda, Egon Schiele, Georg Trakl, Otto Wagner and Franz Werfel.
In addition to portraits of Karl Kraus and Adolf Loos, in 1925 she took a nude series of the dancer Claire Bauroff which the police confiscated when the images were displayed at a Berlin theatre, bringing her international fame.
The heyday of the coffee house was the turn of the nineteenth century when writers like Peter Altenberg, Alfred Polgar, Karl Kraus, Hermann Broch and Friedrich Torberg made them their preferred place of work and pleasure.
In the play, a number of writers, historic, literary or public figures, and scientists are mentioned to illustrate O’Nolan’s colorful and over-populated universe, such as Marcel Proust, Oscar Wilde, Graham Greene, James Joyce, Fionn mac Cumhaill, Harry Rowohlt, Homer, Jonathan Swift, George Bernhard Shaw, the Marx Brothers, Brendan Behan, Éamon de Valera, Karl Kraus, Sherlock Holmes, and Erwin Schrödinger.