Sebastian J. Cole is a supporting character in the anime 'Andersen Douwa: Ningyo Hime' (Hans Christian Andersen's The Little Mermaid). He serves as a loyal and resourceful servant to the prince, often providing comic relief and practical assistance throughout the story. His character adds depth to the narrative by offering perspectives on human nature and the unfolding romance, while also helping to bridge the gap between the human and mermaid worlds through his actions and wisdom.