Hymie the Robot (Dick Gautier) was supposed to appear in this episode. But Gauthier was unavailable so his part was deleted.
The elderly prisoner, who Max calls "Old timer", is actually William Yarmy, the father of Don Adams.
The staff car Smart arrives in is the same one used in many Hogan's Heroes episodes. It was usually transporting General Burkhalter (Leon Askin).
During the fight scene at the airport, the stunt doubles for Don Adams and his opponent are clearly visible in all but the close shots.