Captain Kidd was a heroic freelance aviator who fought villains such as Von Haupt, the Voice, Negus, Queen Izzuki and the Almond-Eyed Amazons, the Great White Chief and his monsters, Perez, the Lama, a fire god, a Chinese vampire named Lu Chieng, Dr. Moro, Sedden, and Hi Lung. He was also a sailor and sailed with his lifelong friend Freddy in his second published adventure.