King Androcles of Thebes commands a ship in search of a threat to Greece, predicted by an atmospheric oracle. Hercules is part of the crew, but the strongman falls overboard in a thick fog. Washed ashore, he saves a young Ismene from Proteus, an evil, shape-shifting creature. Ismene takes Hercules to Atlantis, where he discovers that her mother, Queen Antinea, has captured Androcles. Hercules schemes to rescue him and thwart Antinea's dream of world conquest.
Reg Park
as Ercole
Fay Spain
as Queen Antinea of Atlantis
Ettore Manni
as Androclo, Re di Tebe
Luciano Marin
as Illo
Laura Efrikian
as Ismene, Antinea's Daughter
Mario Valdemarin
as Gabor
Mimmo Palmara
as Astor, il Gran Visir
Mino Doro
as Oraclo
Salvatore Furnari
as Timoteo, il nano
Luciana Angiolillo
as Deianira, Hercules' Wife
Ignazio Dolce
as
Raf Baldassarre
as Capo delle guardie
