The Harpies make their home on Talon Mountain. They all address each other as sisters as there are no males in their species. Hunga is the leader of the Harpies and a sworn enemy of the Queen Angella of Castle Bright Moon.
The Harpies have large wings, clawed feet, and feathers instead of hair. Although they are not part of the Evil Horde, they are aligned to their cause. When the Horde conquered Castle Bright Moon after Queen Angella disappeared during the battle, it later turned out that she was being held captive by Hunga. It remains unclear if the Harpies were involved in the kidnapping and the battle or if Angella was a gift to Hunga from Hordak.
- The Harpies' fight against He-Man and She-Ra both riding Swift Wind, as seen in the episode "Reunions", does not appear in The Secret of the Sword.