 | Helmut Berger als Ludwig |
 | Romy Schneider als Elisabeth of Austria |
 | Trevor Howard als Richard Wagner |
 | Silvana Mangano als Cosima von Bülow |
 | Gert Fröbe als Father Hoffmann |
 | Helmut Griem als Dürckheim |
 | Izabella Telezynska als Queen Mother |
 | Umberto Orsini als Count von Holnstein |
 | John Moulder-Brown als Prince Otto |
 | Sonia Petrovna als Sophie |
 | Folker Bohnet als Joseph Kainz |
 | Heinz Moog als Professor von Gudden |
 | Adriana Asti als Lila von Buliowski |
 | Marc Porel als Richard Hornig |
 | Nora Ricci als Countess Ida Ferenczy |
 | Mark Burns als Hans von Bülow |
 | Maurizio Bonuglia als Mayor |
| Alexander Allerson als Secretary of State |
| Bert Bloch als Weber |
| Manfred Fürst |
 | Kurt Großkurth als Minister of Finance |
 | Anne-Marie Hanschke als Princess Ludovika, Elisabeth's Mother |
 | Gérard Herter als Prince Luitpold |
| Ian Linhart als Maximilian |
 | Carla Mancini |
| Gernot Möhner als Hesselschwerd |
| Clara Moustawcesky als Hélène |
| Alain Naya |
| Alessandro Perella |
| Karl-Heinz Peters als Washinton |
| Wolfram Schaerf als Crailsheim |
 | Henning Schlüter als Minister Fistermeister |
| Helmut Stern |
| Eva Axén als Maria |
 | Louise Vincent |
| Alexander Stephan als Carlo Teodoro |
| Karl-Heinz Windhorst als Doctor Müller |
 | Raika Juri als Matilde |
 | Angelo Casadei als Priest (uncredited) |
| Hans Elwenspoek als Doctor Rumpler (uncredited) |
| Karl Menzel als Stableboy in Hunding's Hut (uncredited) |
| Howard Nelson Rubien als Ambassador (uncredited) |
| Berno von Cramm als Torring (uncredited) |
 | Friedrich von Ledebur als Hofmarschall (uncredited) |
| Armando Nannuzzi | Director of Photography |
| Luchino Visconti | Director |
| Mario Chiari | Production Design |
| Piero Tosi | Costume Design |
| Luchino Visconti | Screenplay |
| Ruggero Mastroianni | Editor |
| Ugo Santalucia | Producer |
| Enrico Medioli | Screenplay |
| Robert Gordon Edwards | Executive Producer |
| Luchino Visconti | Story |
| Enrico Medioli | Story |
| Nino Cristiani | Camera Operator |
| Giuseppe Bernardini | Camera Operator |
| Federico Del Zoppo | Camera Operator |
| Daniele Nannuzzi | Assistant Camera |
| Gianni Maddaleni | Assistant Camera |
| Sergio Melaranci | Assistant Camera |
| Albino Cocco | First Assistant Director |
| Giorgio Ferrara | Second Assistant Director |
| Fanny Wessling | Second Assistant Director |
| Luchino Gastel | Second Assistant Director |
| Louise Vincent | Second Assistant Director |
| Renata Franceschi | Script Supervisor |
| Lucio Trentini | Production Manager |
| Robert Schumann | Music |
| Richard Wagner | Music |
| Jacques Offenbach | Music |
| Franco Mannino | Conductor |
| Lea Mazzocchi | Assistant Editor |
| Stefano Patrizi | Assistant Editor |
| Mario Scisci | Assistant Production Design |
| Pietro Ferraroli | Assistant Production Design |
| Luchino Oltrona Visconti | Assistant Production Design |
| Gabriella Pescucci | Assistant Costume Designer |
| Enzo Eusepi | Set Decoration |
| Corrado Ricercato | Assistant Set Decoration |
| Gianfranco De Dominicis | Assistant Set Decoration |
| Federico Starace | Production Secretary |
| Alberto De Rossi | Makeup Department Head |
| Goffredo Rocchetti | Makeup Artist |
| Grazia De Rossi | Hair Department Head |
| Maria Teresa Corridoni | Hairstylist |
| Anna Cristofani | Assistant Hairstylist |
| Gilda De Guilmi | Assistant Hairstylist |
| Eligio Trani | Makeup Artist |
| Stefano Trani | Assistant Makeup Artist |
| Vittorio Trentino | Sound |
| Giuseppe Muratori | Boom Operator |
| Mario Tursi | Still Photographer |
| Albino Morandin | Unit Manager |
| Federico Tocci | Unit Manager |
| Giorgio Russo | Unit Manager |
| Klaus Zeissler | Unit Manager |
| Suso Cecchi d'Amico | Screenplay |
