He remained committed to that theatre through 1905, portraying such roles as Walitzin/Commissario in Umberto Giordano's Siberia and Johannes Rathenow in the Italian premiere of Ruggero Leoncavallo's Der Roland von Berlin.
Berlin | Johann Wolfgang von Goethe | Berlin Wall | Otto von Bismarck | West Berlin | Humboldt University of Berlin | Irving Berlin | Der Spiegel | East Berlin | Alexander von Humboldt | Roland | Der Rosenkavalier | Wernher von Braun | Carl Maria von Weber | Der Ring des Nibelungen | Rotenburg an der Fulda | Herbert von Karajan | Free University of Berlin | Berlin Philharmonic | Gebhard Leberecht von Blücher | John von Neumann | Deutsches Symphonie-Orchester Berlin | Spittal an der Drau | Lars von Trier | Deutsche Oper Berlin | Roland Barthes | Limburg an der Lahn | Ferdinand von Mueller | Weiden in der Oberpfalz | Paul von Hindenburg |
Subsequent operas by Leoncavallo were in the 1900s: Zazà (the opera of Geraldine Farrar's famous farewell performance at the Metropolitan Opera), and 1904's Der Roland von Berlin.