The characters of Curupira and Iara are almost faithfully based on beings from the Brazilian mythology. The Curupira is described as the merciless protector of animals and the jungle, famous for his backward feet and fiery hair. Iara is the seductive river mermaid or siren who lures men to their death with her singing. Both beings are also characters in Unsichtbare Stadt (2021).
These were the ages of the actors at the time of filming
Emile de Ravin (Curupira) - 17 Natalie Mendoza (Kyra) - 21 Sam Healy (Iara) - 23 Jackson Raine - (Tao) - 25 Daniel Goddard (Dar) - 28 Monika Schnarre (Sorceress) - 28 Marjean Holden (Arina) - 34 Steven Grives (Zad) - 47 Grahame Bond (Ancient One) - 55
Emile de Ravin (Curupira) - 17 Natalie Mendoza (Kyra) - 21 Sam Healy (Iara) - 23 Jackson Raine - (Tao) - 25 Daniel Goddard (Dar) - 28 Monika Schnarre (Sorceress) - 28 Marjean Holden (Arina) - 34 Steven Grives (Zad) - 47 Grahame Bond (Ancient One) - 55
The series ended 20 years after the 1982 film of the same name which the series is based on.
Emile de Ravin was the youngest cast member at the age of 17 while Grahame Bond was the eldest at the age of 55 at the time of filming.