The hero fabled for rescuing Andromeda from a sea monster is Perseus. In Greek mythology, Perseus is known for his bravery and resourcefulness. He obtains the tools necessary to defeat the sea monster Cetus, including the reflective shield from Athena and the winged sandals from Hermes. This story symbolizes the triumph of heroism over adversity and the often pivotal nature of male heroes saving female figures. The rescue highlights themes of courage, sacrifice, and the quest for glory, making Perseus a celebrated figure in the rich tapestry of Greek mythological narrative.