The skippers name was Jonas Bumphry, I think.
The Professor = "Roy Hinkley"
Mary Ann = "Mary Ann Summers"
Gilligan = "Willy Gilligan" (His first name was never used on the show, but Sherwood Schwartz once said in an interview that if they did a script that called for him to have a first name, it would be Willy.)
Close. Jonas Grumby