Origin
Serpentor wanted the secret of the Selderum Aeroplanis, a plant whose sap makes you fly, for himself. He uses his favorite snake Kanga to scare off other explorers. He can guide his snake by giving it directions through a radio receiver. The snake then stares at the victim and together with the voice of Serpentor, the victim is hypnotized and ordered to leave.
After he is captured by Suske, Wiske, Lambik and his brother Arthur, Serpentor repents and becomes a zookeeper, looking after his snake.