Star Trek star Jonathan Frakes was reportedly asked not to smile by TNG creator Gene Roddenberry but that was changed in later seasons.
Patrick Stewart admits SHOCKING truth about Star Trek creator Gene Roddenberry
Gene Roddenberry's sci-fi series Star Trek boldly went where no other show in the genre went. While the show explored several philosophical questions and featured several alien worlds, it differed from the usual dystopian sci-fi series by providing a positive view of the future of humanity.
Roddenberry was known for having a lot of rules in the characterization of the show's many crews, which usually drove writers crazy. However, a rule by Roddenberry on Jonathan Frakes' William Riker reportedly didn't last past the first season. Frakes mentioned that Roddenberry told him that Riker wouldn't smile as much.
Jonathan Frakes' William Riker is known for his flamboyant personality. The first officer of the USS Enterprise was depicted as a damsel, who grows over the seven seasons of Star Trek: The Next Generation to become a friendly leader. He is called "Number One" by Captain Jean-Luc Picard.
