The Adventures of Tintin partially deaf physicist and a regular character alongside Tintin, Snowy, and Captain Haddock. He was introduced in "Red Rackham's Treasure", and based partially on Auguste Piccard, a Swiss physicist. The leading characters do not initially welcome his presence, but through his generous nature and his scientific ability, he develops a lasting bond with them. Eventually, by the end of "Land of Black Gold", he becomes a resident of Marlinspike Hall. Normally mild-mannered and dignified, Calculus occasionally loses his temper and acts in a spectacularly aggressive manner in response to actual or perceived insults, such as when Captain Haddock belittles his
The Adventures of Tintin (film) assassinated while attempting to recover the "Unicorn". Tintin places the scroll in his wallet, but it is pickpocketed by Silk the next morning. Later, Tintin is abducted by accomplices of Sakharine, and imprisoned on the SS "Karaboudjan". He learns Sakharine formed an alliance with the ship's staff and led a mutiny to take control. On board, Tintin meets Archibald Haddock, the ship's captain. Haddock is permanently drunk and thus unaware of most of his past. Tintin, Haddock, and Snowy eventually outrun the crew and escape from the "Karaboudjan" in a lifeboat. The ship fails to ram their boat because they