| Actor | Jean Marais, Jean Debucourt, Jacques Dacqmine, Michel Vitold, Jean Toulout, Raphaël Patorni, François Richard, André Carnège, Charles Lemontier, Andrews Engelmann |
| Actress | Dominique Blanchar, Claude Farell, Silvia Monfort, Jane Marken, Marguerite Jamois, Denise Benoit, Madeleine Foujane |
| Assistant | Pierre Zimmer |
| Dialogue | Philippe Hériat |
| Director | Jean Delannoy |
| Director Of Photography | Robert Lefebvre |
| Music | Louis Beydts |
| Production Designer | Raymond Druart |
| Screenplay | Jacques Rémy, Jean Delannoy |
| Sound | René Longuet |
| Links | https://fr.wikipedia.org/wiki/Le_Secret_de_Mayerling · https://www.unifrance.org/film/4534/le-secret-de-mayerling · https://www.imdb.com/title/tt0040769/ · http://cinema.encyclopedie.films.bifi.fr/index.php?pk=47972 |
