Fairy Princess Willow

Fairy Princess Willow is the leading female protagonist of Scooby-Doo and the Goblin King.

Scooby-Doo and the Goblin King
Princess Willow is the daughter of the powerful Goblin King. She is rebellious and loves to explore, and when we first see her, Willow plays pranks on the wicked magician Krudsky, which leads to her capture. Krudsky steals her fairy powers and she remains his prisoner throughout virtually the whole film. Willow is finally released, but the Goblin King scolds and grounds her for sneaking out and for her selfishness but admits he's glad to have her back. In the end, Willow brings Jack-O-Lantern back to life after a battle and blesses Shaggy and Scooby-Doo with the magic of the fairies.

Trivia

 * Fairy Princess Willow is voiced by Hayden Panettiere.
 * Although she is not at all afraid of Krudsky and stands up to him, Willow is not as much a heroine.