Directed by
| Rudolph Maté | ||
Writing Credits
| Andrew Solt | ... | (original story by) |
| Andrew Solt | ... | (screenplay by) |
Cast (in credits order) complete, awaiting verification
| Mario Lanza | ... | Tonio Costa | |
| Johanna von Koczian | ... | Christa | |
| Kurt Kasznar | ... | Ladislas Tabory | |
| Hans Söhnker | ... | Prof. Bruckner (as Hans Sonker) | |
| Annie Rosar | ... | Mathilde Faktotum | |
| Sandro Giglio | ... | Alessandro | |
| Walter Rilla | ... | Dr. Bessart | |
| Renzo Cesana | ... | Angelo | |
| Peter Capell | ... | Leopold Hübner | |
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Gisella Mathews | ||
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Michael Cosmo | ... | Aldo |
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Carlo Rizzo | ||
| John Stein | |||
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Manfred Schäffer | ||
| Zsa Zsa Gabor | ... | Gloria De Vadnuz | |
| Rest of cast listed alphabetically: | |||
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Manfred Inger | ... | Servant at the Vienna State Opera (uncredited) |
| Nico | ... | Leader of Admirers in Capri (uncredited) | |
Produced by
| Paul Baron | ... | associate producer |
| Alexander Grüter | ... | producer (as Alexander Grueter) (produced by) |
| Alfredo Panone | ... | associate producer |
Music by
| George Stoll | ||
Cinematography by
| Aldo Tonti | ||
Editing by
| Gene Ruggiero | ||
Production Design by
| Hans Jürgen Kiebach | ... | (as H.J. Kiebach) |
| Fritz Maurischat | ||
| Heinrich Weidemann | ||
Art Direction by
| Fritz Maurischat | ||
Costume Design by
| Alfred Bücken | ||
| Charlotte Bücken | ||
Makeup Department
| Otello Fava | ... | makeup artist |
| Max Rauffer | ... | makeup artist |
| Arthur Schramm | ... | makeup artist |
Production Management
| Max Koslowski | ... | production manager |
| Georg von Block | ... | production manager |
Second Unit Director or Assistant Director
| Hans-Joachim Sommer | ... | assistant director (as Hans Sommer) |
Music Department
| George Stoll | ... | musical director |
| Peter Zinner | ... | music editor |
Additional Crew
| Friedrich Joloff | ... | voice dubbing: Carlo Rizzo (german version) (uncredited) |
| Friedrich Schoenfelder | ... | voice dubbing 'Journalist' (uncredited) |