This is one of two times in the series where Bob Crane is seen playing drums. In real life, Crane was an accomplished drummer, even recording an album. In fact, Crane played the drums that are heard during the opening theme of Hogan's Heroes. The other time where Crane is playing the drums is in Look at the Pretty Snowflakes (1971).
The pilot of the Valkyrie, Lieutenant Harris, was played by well-known Hollywood stunt pilot Frank Tallman, best known for flying an airplane through a billboard in the movie "It's a Mad, Mad, Mad, Mad World".
This is the first episode in which the prisoner of war facility was called "Stalag 13," a reference used for the rest of the series. Previously in a few early episodes the prisoner of war facility was called "Camp 13."