There Was Another Woman
In the original pilot there was another female lead named Claire played by Lee Garlington, a waitress at the coffee shop regularly frequented by Jerry and George. But they eventually changed the location of their meeting place and casting a different lead actress. There are several conflicting stories about this character, including a rumor that she changed her lines too much and another rumor that the character was dropped to add one with more sex appeal. Who knows if we will ever know the real story?