Last show of the series.
Two years later, "Citizen Kane" actor Paul Stewart who had directed this episode, would again direct actor Charles Aidman in the classic episode of The Twilight Zone (1959) titled Little Girl Lost (1962) where he played the scientific friend who helps a married couple retrieve their unseen missing daughter whose voice is still heard from the dimensional separation into which she has fallen. Aidman would later become the unseen narrator of the eighties reboot of The Twilight Zone (1985).