Wells) – A farm girl from Winfield, Kansas. Not much is known about her before she gets to the island. She is portrayed as a typical "girl next door" and does most of the laundry and cooking with some help from Ginger. Recurring characters Radio Announcer (voiced by Charles Maxwell) – An announcer on the radio that the castaways own. The castaways would listen to his plot-advancing radio bulletins in many episodes and always with perfect timing to hear the exact news they needed to know. The Natives (Various actors) - The castaways frequently encountered members of various tribes living on neighboring islands, when they came to the island. Wrongway Feldman (portrayed by Hans Conried) – A fighter pilot from World War I. He was stuck on the island when he tried to fly around the world in The Spirit of the Bronx. He leaves at the end of the episode, but returns later saying he will stay on the island. However, he leaves again but he crashes and never appears again. The castaways get a message from him saying he "crashed on a strange island" which appears to be Hawaii. Japanese Sailor (portrayed by Vito Scotti) – Appeared in two episodes. For his first appearance, he locks everybody on the island up except Gilligan and Skipper. In his second appearance, he appears in a flashback of events that never happened. The Gorilla (performed by Janos Prohaska) – The only animal antagonist on the island, causes mayhem and mischief. In the episode '"Diamonds Are an Ape's Best Friend", he kidnaps Mrs. Howell because her perfume acted as a pheromone. In the episode "Chain of Command", he disciplines Gilligan to be a better leader. In the episode "Forward March", he shells the castaways with hand grenades after finding WWII weapons in a cave. In the episode "Our Vines Have Tender Apes", the gorilla is replaced with a large orangutan. Janos Prohaska also performed Gladys the chimpanzee in the episode "Beauty Is as Beauty Does". Dr. Boris Balinkoff (portrayed by Vito Scotti) – A mad scientist who appears twice. For his first appearance, he takes the castaways to his castle on another island where he did mind-swapping experiments on them. In the end, the castaways escape. The second time, he uses mind-control rings to get the castaways to rob Fort Knox. He then flees when they attack him with coconuts and is