Thetis
Thetis is one of 50 Nereids (sea nymphs) and a goddess of the sea in Greek mythology. Thetis is best known for being the mother of the Greek hero Achilles, however, her role goes beyond that; she appears in various stories and interacts with multiple gods and goddesses, often caring for gods and heroes in need.
Described as fair-haired and silver-footed, Thetis was the most prominent of the Nereids (alongside Amphitrite), with the power to transform into different forms. Her wedding to King Peleus was the most splendid in Greek mythology and was part of the catalyst for the Trojan War.