Sofia

"With each deed performed for better or worse, a power's granted, a blessing, or curse. My amulet gives me special powers when I do good things; I helped you out of the net. So the amulet gave me the power to transform into a mermaid! Do you know what that means?! (Oona: What?) I CAN SWIM UNDERWATER LIKE A MERMAID! (...) THIS IS INCREDIBLE!!!"

- Sofia to Oona about her mermaid transformation.

Sofia is a human princess from the show Sofia the First. Sofia is voiced by Ariel Winter.

Biography
Sofia is temporarily turned into a mermaid by the Amulet of Avalor and is seen as a mermaid in episodes The Floating Palace, Cool Hand Fluke, Return to Merroway Cove, and the series finale Forever Royal. As a mermaid Sofia is able to breathe underwater and swim like a mermaid. Sofia is turned into a mermaid when her feet make contact with water and when it does the Amulet of Avalor excretes magic all over Sofias body turning her legs and feet into a mermaid tail and fin, top into a mermaid dress, and her tiara different

Appearance
When Sofia turns into a mermaid she gets a purple mermaid tail, a purple dress and on that dress are purple sea shells, a seaweed bracelet, and a yellow tiara with seahorses on them.

On Sofia's second mermaid design she got a purple mermaid tail, a pink dress with a seashell design, on the bottom Sofia has a dark purple coral belt, Sofia like her old design has a seaweed bracelet but on both of her arms, Sofia also has yellow tiara with a purple seashell on it.