Brünnhilde: A Valkyrie; daughter of Wotan and Erda; first Siegfried's wife, then Gunther's.
The Valkyries: Helmwige, Gerhilde, Waltraute, Ortlinde, Rossweisse, Grimgerde, and Schwertleite. Daughters of Wotan and Erda, and sisters to Brünnhilde. Appear in the "Valkyrie," and Waltraute also in the "Dusk of the Gods."
Norns: Earth's daughters who spin men's destinies.
Gutrune: Daughter of Gibich and Grimilde and Gunther's sister, Hagen's half-sister, and Siegfried's wife. Appears in the "Dusk of the Gods."
Wotan: (The Wanderer) King of the Gods, and God of War, Father of the Valkyries, Father of Siegmund and Sieglinde. Appears in the "Rheingold," the "Valkyrie," and as the Wanderer, in "Siegfried." Married to Fricka.
Alberich: Gnome: King of the Nibelungs, Spirit of Darkness. Appears in the "Rheingold," "Siegfried," and the "Dusk of the Gods."
Fasolt: Giant and brother of Fafner; belongs to the race of mortals. Appears in the "Rheingold."
Fafner: Giant and brother of Fasolt, and of the race of mortals. Appears in the "Rheingold" and "Siegfried."
Froh: God of Pleasure; brother of Donner and Freïa, and Fricka. Appears in the "Rheingold."
Donner: God of Thunder, brother to Fricka, Freïa, and Froh. Appears in the "Rheingold."