Phần 1

• Romy Schneider as Empress Sissi
• Karlheinz Böhm as Emperor Franz Joseph I
• Vilma Degischer as Archduchess Sophie, Franz Joseph's mother
• Erich Nikowitz as Archduke Franz Karl, Franz Joseph's father
• Peter Weck as Archduke Karl Ludwig, Franz Joseph's brother
• Magda Schneider as Duchess Ludovika in Bavaria, Sissi's mother and Sophie's sister
• Gustav Knuth as Duke Max in Bavaria, Sissi's father
• Uta Franz as Princess Helene in Bavaria, or "Nené", Sissi's older sister
• Josef Meinrad as Gendarmerie-Major Böckl
• Richard Eybner as Postmaster of Ischl

Phần 2

• Romy Schneider as Empress Sissi
• Karlheinz Böhm as Emperor Franz Joseph I
• Vilma Degischer - Archduchess Sophie, Franz Joseph's mother
• Erich Nikowitz - Archduke Franz Karl, Franz Joseph's father
• Magda Schneider - Duchess Ludovika in Bavaria, Sissi's mother
• Gustav Knuth - Duke Max in Bavaria, Sissi's father
• Josef Meinrad - Major Böckl
• Richard Eybner - Postmaster of Ischl
• Walter Reyer - Count Andrássy
• Senta Wengraf - Countess Bellegarde
• Helene Lauterböck - Countess Esterhazy-Liechtenstein

Phần 3

• Romy Schneider as Empress Sissi
• Karlheinz Böhm as Emperor Franz Joseph I
• Vilma Degischer as Archduchess Sophie, Franz Joseph's mother
• Erich Nikowitz (de) as Archduke Franz Karl, Franz Joseph's father
• Magda Schneider as Duchess Ludovika in Bavaria, Sissi's mother
• Gustav Knuth as Duke Max in Bavaria, Sissi's father
• Uta Franz (de) as Princess Helene in Bavaria, or "Néné", Sissi's older sister
• Walther Reyer as Count Andrássy
• Peter Neusser (de) as Count Batthyány
• Josef Meinrad as Major Böckl
• Senta Wengraf as Countess Bellegarde (Pauline von Königsegg (de))
• Hans Ziegler (de) as Dr. Seeburger
• Sonia Sorel as Henriette Mendel
• Klaus Knuth (de) as Prince Ludwig
• Albert Rueprecht (de) as Archduke Ferdinand Max
• Walter Regelsberger (de) as Count Windisch-Graetz