Continuity mistake: Race secretly snaps a picture of his double, but later in the episode the developed picture shows Race's double and the big henchman standing side-by-side, as if they posed for the picture.
Continuity mistake: Before boarding her helicopter, Jade kisses Race as her head is turned towards her right shoulder. The next shot her head is turned towards her left shoulder.
Continuity mistake: A table full of food is rolled out for Korchek, Race Bannon's double, to mimic Race's eating habits, but then instantly changes to a table with a pad and pen.
Continuity mistake: The bullet hole patterns and number of holes in the condor target change position.
Continuity mistake: The Baron's airplane propeller shaves off the blue part of the tail of Race Bannon's plane and reappears intact several shots later, then is missing again. Race returns the favor to the Baron's plane: the tail of the Baron's plane is intact in some scenes, shaved off in others.
Continuity mistake: As Race, Jonny, and Hadji manoeuvre the sub through the tunnel, the scenes inside the sub show Hadji on Race's right side, but shots outside the sub showing inside the sub through the portal show Hadji on Race's left side.
Continuity mistake: Dr. Quest is wearing a headset and microphone from the views inside the diving bell. Looking from the outside into the diving bell shows Quest not wearing the mic and headphones.
The Fraudulent Volcano - S1-E16
Audio problem: Simon One's mouth does not move when he is giving the fire commands to his gunner to knock down Race and Dr. Quest's plane.
Werewolf of the Timberland - S1-E17
Continuity mistake: The guard sitting by the campfire changes position around the campfire and the tents.
Attack of the Tree People - S1-E19
Other mistake: The captain of the ship that picks up Race and Dr. Quest talks with a German (and sometimes French) accent but the commands he gives are in Dutch, like "Volle kracht vooruit" and "Pik de drenkelingen op" (the Dutch accent is very different from the German accent, as is Dutch from German).
The Quetong Missile Mystery - S1-E22
Audio problem: Dr. Quest points at the escaping car and says, "I see him!", but Race Bannon's voice is heard.
The House of Seven Gargoyles - S1-E23
Continuity mistake: Ivar's scarf changes from yellow to green from the first shot to the next.
Continuity mistake: The butcher's knife Charlie the cook holds when he comes out of the freezer vanishes.