Star Trek: Enterprise
When creating "Star Trek: Deep Space Nine", the show's writers decided to introduce the Ferengi bartender Quark (Armin Shimerman) as a major character, and subsequently his brother Rom (Max Grodénchik) and nephew Nog (Aron Eisenberg) as recurring characters, again frequently using them for comedic purposes. Ferengi characters subsequently appeared in a single episode of "Star Trek: Enterprise" and a few times in "Star Trek: Voyager".