Alan Young (Mr. Knox) and Rosemary DeCamp (Amy Jeffries) both appeared in adaptations of the 1895 novel "The Time Machine" by H.G. Wells: Young played David Filby and his son James in The Time Machine (1960) and a flower shop worker in The Time Machine (2002) while DeCamp played Agnes in The Time Machine (1978).
Actor Alan Young (of TV's "Mr. Ed" fame as character Wilbur Post) appears. At about 31 minutes in, a page is broadcast in the hospital calling out for "Mr. Post," call for "Mr. Post." A sly reference to Alan Young's role on the T.V. series "Mr. Ed."