Frank Wolff/Francisco Lopez de Heredia

A shrewd and cynical but ultimately noble steamboat skipper who reluctantly agrees to guide two explorers on their quest for the mythical Tree. He eventually reveals his true name and identity as Aguirre's adopted brother and one of the cursed conquistadors, forever trapped by the Amazon river. He is a trained cartographer who has spent centuries searching for the Tree to break the curse that made him immortal so he can die peacefully. Meanwhile, he has built a town, and a boat he christened "La Quila" for his business under "Jungle Navigation Company" while owning a number of tamed exotic cats as a pet, each one named "Proxima".