Clash of the Titans Wiki
Thumb Io
"I've watched you all your life. I guided you to your family."








Inachus (Father)
Perseus (husband)
Helius (son)




(2010) Clash of the Titans
(2010) Clash of the Titans: The Videogame
(2012) Wrath of the Titans (mentioned only)

Io is a major character of Clash of the Titans. She was portrayed by Gemma Arterton in the 2010 remake.


Io was, in Greek mythology, a priestess of Hera in Argos, a nymph who was seduced by Zeus, who changed her into a heifer to escape detection. His wife Hera set ever-watchful Argus Panoptes to guard her, but Hermes was sent to distract the guardian and slay him. Heifer Io was loosed to roam the world, stung by a maddening gadfly sent by Hera, and wandered to Egypt, thus placing her descendant Belus in Egypt; his sons Cadmus and Danaus would then "return" to mainland Greece.


Cla Peen Danae. As a result, Danae gives birth to Zeus' son, Perseus[]

Acrisius, driven mad with rage, orders the execution of Dänae and the newborn baby and casts them into the sea in a coffin. As punishment for his continued defiance, Zeus also strikes Acrisius with lightning, transforming him into a monster. Io also reveals that she was cursed with immortality after refusing to give in to Poseidon's advances and has watched over Perseus his entire life, beginning with watching from ashore as his adoptive parents rescue him from the floating coffin, to the present, always protecting him, as he is prophesized to be the only one able to stand up to the Gods.

Wrath of The Titans[]

Io is only mentioned in the beginning as dead. She must have died after Helius was born.

Other appearances[]

Clash of the Titans: The Videogame[]