Hi-Fi Gilligan Gilligan's mouth becomes a radio after he is accidentally hit on the head. When their regular radio is broken, Gilligan becomes their sole source of information on the approaching typhoon. Details Casts Title Hi-Fi Gilligan Genres Comedy Family Release Date 1965-11-25 Episode Runtime 00 Hours 25 Minutes Season Number 2 Episode Number 10 Production Companies United Artists Television, CBS, Gladysya Productions Bob Denver Gilligan Alan Hale Jr. Jonas "The Skipper" Grum? Jim Backus Thurston Howell, III Natalie Schafer Eunice "Lovey" Wentworth? Tina Louise Ginger Grant Dawn Wells Mary Ann Summers Russell Johnson Roy "The Professor" Hink?