Who is Io in Clash of the Titans?

In the 2010 film "Clash of the Titans," Io is portrayed as a warrior and a key ally to Perseus. Played by Gemma Arterton, she is a mortal woman who has been cursed by the gods to remain ageless and is tasked with guiding and aiding Perseus in his quest against the Kraken. Io's character adds depth to the story, as she embodies themes of love, loyalty, and sacrifice. Her knowledge of the gods and the world around them proves invaluable to Perseus on his journey.