Just like the confusion between Tom Bosley, and 'David Doyle', so was the confusion between 'Beverly Garland', and Lois Nettleton. This episode is one of the rare times actors, who many confuse with others - due to their similar appearance, or names, appear together.
Chris Kane, who plays Pearl Dillard in this episode, is also known as Irene Kane, and starred in Stanley Kubrick's Killer's Kiss (1955) under that name. She later became a journalist and author under the name Chris Chase.