Richard Matheson wrote the teleplay for this episode using the pseudonym "Logan Swanson". Vic Morrow, who plays Sgt. Saunders, was in Twilight Zone: The Movie (1983) 21 years later; that film was also written by Matheson, except for one segment--the one featuring Morrow, in which he unfortunately died in a helicopter accident.
The German soldier Carl, played by Albert Paulsen, starts singing "Show Me the Way to Go Home". This is the same song Quint, Hooper and Brody, i.e. Robert Shaw, Richard Dreyfuss, and Roy Scheider, respectively, sing in a scene from the movie Jaws (1975), made some 13 years after the original broadcast of this episode.