Peter Baldwin Director Bob Denver Gilligan Actor Alan Hale Jr. Skipper Jonas Grumby Actor Jim Backus Thurston Howell III Actor Natalie Schafer Lovey Wentworth Howell Actor Constance Forslund Ginger Grant Actor Russell Johnson Prof. Roy Hinkley Jr. Actor Dawn Wells Mary Ann Summers Actor David Ruprecht Thurston Howell IV Actor Martin Landau J.J. Pierson Actor Barbara Bain Dr. Olga Schmetner Actor Scatman Crothers Dewey Stevens Actor Whitney Rydbeck George Actor Dreama Denver The Howells' secretary Actor Rosalind Chao Hotel clerk Actor Harlem Globetrotters Themselves Actor Hap Wyman Producer Lloyd J. Schwartz Producer