|Unit Director(s)||Peter Hudecki|
|Storyboard Artist(s)||Pascal Morelli|
|Orig. airdate||16 & 23 December 1991|
|Episode no.||12 & 13|
Changes from the Book
The Syldavian group who tries to snatch Professor Calculus from the Bordurians in the original book is removed for the sake of simplicity. Also, in the original book, Calculus was kidnapped much earlier in the story.
- Colin O'Meara - Tintin, Lieutenant Kavitch
- Susan Roman - Snowy
- David Fox - Captain Haddock
- Wayne Robson - Professor Calculus
- John Stocker - Detective Thompson
- Dan Hennessey - Detective Thomson
- Vernon Chapman - Nestor
- Maureen Forrester - Bianca Castafiore
- In Part 1 (and the recap in the Part 2) when Tintin, Nestor and the Captain hear the gun shot fire a bullet through the professor's hat, Nestor has black eye lids.
- In Part 2, after Krônick and Klûmsi introduce themselves, the Captain's cap badge disappears.
- In Part 2, in the exterior shot of Tintin looking out of the window of the hotel, he is wearing his brown jacket instead of this beige coat.
- In Part 2, when the Professor Calculus decides to destroy the plans for his machine, the camera pans down to show that the animators forgot to draw the professor's left hand and render properly the lower half of his coat.