In both Norse and Greek mythologies, fate plays a significant role in defining characters' destinies, often depicted as unavoidable forces. In Greek mythology, the Fates determine the lifespan and events of mortals. Similarly, in Norse mythology, Urd, Verdandi, and Skuld represent past, present, and future, ensuring that even the gods cannot escape their predetermined fates. This portrayal emphasizes the themes of inevitability and human vulnerability, illustrating how fate holds sway over both divine and mortal realms.