Thunderdell was the guardian of the sacred treasures of Giantland - the harp and the goose - in Jack and the Beanstalk: The Real Story. He was the foster father of the leading lady Ondine and the real father of Bran. Actually, Bran tried to save him, but Thunderdell urged him to let go, and Bran's hand finally slipped. His bones were found by Robinson Enterprises while breaking ground on their new casino - and the giants still want revenge on the Robinson family for his murder.