The Friendly Physician

The Friendly Physician is the 29th episode of the Second Season. It aired April 7, 1964.

Synopsis
A scientist named Dr. Boris Balinkoff living on an island nearby spots The Castaways smoke signal and rescues the castaways by taking them back to his island. Both Gilligan and the Skipper are spooked by the spooky décor of his home and start having reservations about what his motives really are. They explore the dungeon and find a dog that sounds like a cat and a cat that sounds like a dog in the dining room. When Balinkoff describes his mind-exchange experiments to the boys and his plan to use them in his experiments, he has his manservant Igor take them hostage. The others meanwhile have no idea what is happening, and after Balinkoff tries to indict Mr. Howell as his partner and accomplice, they're all taken captive. Gilligan and Mr. Howell are swapped for each others bodies as are the Skipper and Mrs. Howell and the Professor with Mary Ann. However, behind Balingkoff's back, Igor swaps bodies with Ginger, and she uses his incredible strength to free the others. The Professor restores everyone's true identities, but by now, Balingkoff shows back up and realizes what has happened. The Skipper jumps Balingkoff and holds him as the Professor restores Ginger to normal. The castaways then trap Balingkoff and Igor in the machine as Gilligan puckishly flips the switch. As they're leaving, Balingkoff as the cat runs from Igor as the dog as Dog-Igor chases Cat-Balingkoff through the house. Back at the Island, the Professor realizes they can use the rowboat to reach the shipping lanes, but as the others gather supplies, the Skipper and Gilligan try tying it off, only to watch the tired and worn craft sink exhaustedly into The Lagoon.

Trivia

 * The haunted house set used as Balinkoff's home is reused in Gilligan's vampire dream in Up At Bat. It superficially resembles the interior of Collinwood with a foyer, passageway under the top landing and adjacent room on the 60s series, "Dark Shadows." The exterior film shot of it is from the movie, "The Raven," with Vincent Price and reused in "The Terror" with Boris Karloff and Jack Nicholson.
 * This is the only time in the series that the Castaways successfully leave the island.
 * Dr. Balingkoff's mind experiments have Gilligan and Mr. Howell switch bodies as well as the Skipper and Mrs Howell and Mary Ann and the Professor. A continuity error results when Igor changes with Ginger. Balingkoff obviously has no knowledge of this switch, and yet, how did Igor trap Ginger long enough to switch bodies with her, and for what reason. (Was he tired of being large and homely and switched with Ginger behind the doctor's back?) Likewise, when Balingkoff and Igor changed minds with the cat and dog, who let the cages open seconds after the transference? Could the glass cages have an auto-unlock mechanism?
 * When Dr. Balinkoff later comes back to the Island in Ring Around Gilligan, Igor is the name of a monkey, but there is no indication it's the manservant in the monkey's body.
 * Syndicated versions of this episode cut the scene with the rowboat at the end.
 * Character actor Vito Scotti would end up guest starring on Gilligan's Island four times - twice as the Japanese Sailor and twice as Dr. Boris Balinkoff!
 * The boat is again seen in Ghost a Go-Go in which it is booby trapped to blow up-with dummies of the castaways aboard!

Quotes

 * Dr. Boris Balinkoff - “Bah! Bah on money!”
 * Mr. Howell - “Bah on money!? What are you? Some kind of an atheist!? A Yale man!?”