Isaac Asimov, the Groper
Then again, given the fact that Asimov wrote the books titled The Sensuous Dirty Old Man (1971) and Lecherous Limericks (1976), his behavioral violations shouldn't have been that surprising.
[Nevala-Lee also comments on Asimov's tremendous output as an author, but somehow ignores the strong possibility that a portion of this output likely was ghostwritten.]