Lanei Chapman plays the housekeeper. In an alternate ending to this episode that was never broadcast, her character reveals that she speaks fluent English (with an accent native to New York, not Senegal), causing George to lose interest in her.
The name of the "Old Man" character referenced in the episode title was Sidney Fields. Sid Fields was an actor and writer on The Abbott and Costello Show (1952), of which Jerry Seinfeld was a huge fan.
Ben Cantwell (Robert Donley), the man George (Jason Alexander) spends time with is named after the Boston Braves pitcher who had a memorably terrible 1935 season. He lost 25 games, more than any other pitcher in the league that year.