Russell Johnson: 1924-2014

Actor Russell Johnson poses during the "Gilligan's Island: The Complete First Season" DVD launch party on Feb. 3, 2004, in Marina Del Rey, Calif. Johnson, who played The Professor on "Gilligan's Island," has died. His agent confirmed to CBS News that Johnson died of natural causes at his home in Washington State on Jan. 16, 2014. He was 89.

"Gilligan's Island" - 1965

The "Gilligan's Island" cast, from left, Jim Backus, Russell Johnson, Natalie Schafer, Bob Denver, Tina Louise, Alan Hale Jr. and Dawn Wells, pose in a 1965 photo. The show aired on CBS from 1964 to 1967 and then attracted even more popularity in syndication.

Russell Johnson - 1978

Russell Johnson, as The Professor, posing during filming of a two-hour reunion show, "The Return from Gilligan's Island," in Los Angeles on Oct. 2, 1978.

"Gilligan's Island" - 1978

The cast of "Gilligan's Island," from left, Russell Johnson, as The Professor; Jim Backus as Thurston Howell III; Natalie Schafer, as Mrs. Howell III; Alan Hale Jr., as the skipper; Bob Denver, as Gilligan; Judith Baldwin replacing original cast member Tina Louise, as Ginger, and Dawn Wells, as Mary Ann, pose during filming of a two-hour reunion show, "The Return from Gilligan's Island," in Los Angeles on Oct. 2, 1978.

"Gilligan's Island" cast - 2004

From left, "Gilligan's Island" actor Bob Denver, creator Sherwood Schwarz, actress Dawn Wells and actor Russell Johnson arrive at the launch party for "Gilligan's Island: The Complete First Season" on Feb. 03, 2004, in Marina del Rey, Calif.

"Gilligan's Island" cast - 2004

Creator of "Gilligan's Island" Sherwood Schwartz and Actor Russell Johnson are seen talking during the "Gilligan's Island: The Complete First Season" DVD launch party on Feb. 3, 2004, in Marina Del Rey, Calif.

"Gilligan's Island" cast - 2004

Producer Sherwood Schwartz, actresses Dawn Wells and Tina Louise and actors Bob Denver and Russell Johnson of "Gilligan's Island" attend the 2nd annual TV Land Awards held at The Hollywood Palladium, March 7, 2004 in Hollywood, Calif.

Russell Johnson - 2004

Actor Russell Johnson attends the 2nd Annual TV Land Awards held on March 7, 2004, at The Hollywood Palladium, in Hollywood, Calif.