TV - Movies
The Only
Episode To Not
Feature George
"Seinfeld," the so-called "show about nothing," worked because the cast, Jerry Seinfeld, Julia Louis-Dreyfus as Elaine Benes, Jason Alexander as George Costanza, and Michael Richards as Cosmo Kramer, all worked so well together.  It may surprise fans to learn that not every member of the cast appeared in every episode, and there’s one episode that did not feature George at all.
Episode 3 of Season 3, "The Pen," where Jerry and Elaine visit Jerry's parents at their Florida retirement community, is the only episode in the whole series that does not include a single scene featuring Alexander as George. Jerry's visit to the community and acquiring an astronaut pen needlessly triggers bickering with his parents' neighbor Jack Klompus (Sandy Baron).
Additionally, Elaine is forced to sleep on a spare pullout sofa, injures her back, and spends the last act drugged up on muscle relaxers. Perhaps the show's writers knew adding someone as volatile as George into the mix would simply prove one too many cooks in the kitchen.