Gene Siskel and Roger Ebert had a policy of refusing to do cameos in movies and on television shows because they felt it would be a conflict of interest. Yet they relented for 'The Critic' because they were fans of the show.
When Gene Siskel died in February 1999, Roger Ebert did a half hour tribute to his partner on their show and included a clip of their singing duet from this episode.
In addition to film critics Gene Siskel and Roger Ebert, real life film critics Gene Shallit and Rex Reed appear as themselves and additionally other known film critics Judith Crist and Pauline Kael are also mentioned.