This was the second and final acting credit for Jim Hicklin, who played the helicopter pilot. In 1973 he was shot to death in front of his wife aboard a cruise ship that was taking the couple on a vacation to Mexico.
Immediately following the initial broadcast of this episode was the TV movie The Last Child (1971) starring Michael Cole. This dystopian thriller is set in 1990s America where overpopulation limited couples to only one child. Cole's wife is played by Janet Margolin. The cast also boasts Edward Asner, Harry Guardino, Barbara Babcock, Kent Smith, and Van Heflin in his final role.