|Died||Stabbed by Jason|
|First Appearance||Pandora's Box|
|Portrayed by||Anton Lesser|
Kyros was a criminal located in the City of Atlantis.
He deliberately captured Hercules and Medusa in order to threaten Hercules into travelling to the Underworld to retrieve Pandora's Box from Campe's lair. He first threatened to behead Hercules and then threatened to harm Medusa, which persuaded the warrior in the end.
When Hercules and his friends returned, Kyros made an exchange and allowed Medusa to return. However, as he took Pandora's Box, he realised it was fake and ordered them to be killed. He went directly for Jason who had accompanied Hercules on his journey, however, Kyros was stabbed in the stomach and killed. (Pandora's Box)