Russell Johnson -- the actor who gained fame playing The Professor on the popular 60's comedy series Gilligan's Island -- has died at age 89.
The star's agent, Mike Eisenstadt, says Johnson died Thursday morning at his home in Washington State of natural causes.
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Dawn Wells -- who played Mary Ann on the show -- reacted to the death of Johnson, whom she said had been in a hospice for a short period of time. "Russell was 100 percent a gentleman. A genuine, dear, wonderful man," Wells told ET.
Johnson was a busy but little-known character actor when he was cast in Gilligan's Island, which followed seven people marooned on an uncharted Pacific island, during its run on CBS from 1964-1967.His character, high school science teacher Roy Hinkley, built generators and other gadgets out of scraps of junk found on the island.
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