Gahan of Gathol: A prince of the Martian kingdom of Gathol who falls in love with Tara of Helium and is initially spurned by her when revealing his feelings.
Ghek: A Kaldane, unusual among his kind in his ability to appreciate emotion, dissatisfied with Kaldane society who is charmed by Tara's singing, and joins Gahan of Gathol and Tara of Helium in their escape from the valley of the Kaldanes [REF].