Keith Hernandez, the legendary former New York Mets first baseman, continues to receive $5,000 annually in residuals from his Seinfeld appearances, particularly his memorable role in ‘The Boyfriend’ episode. His iconic line, 'I’m Keith Hernandez,' has become synonymous with his career, and his contributions to the show are celebrated through documentaries. Despite his transition to broadcasting, Hernandez’s role on Seinfeld remains a highlight of his career.

After appearing in three episodes, including the famous ‘The Boyfriend,’ Hernandez’s impact on the show is evident. The episode has even inspired documentaries that use his line as their title.