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: The Secret of the Unicorn (video game) off, as Tintin, Haddock and Snowy wake up in the desert. Two men approach them in a motorcycle with a side car. They are Allan's men, and plan to bring Tintin to the city of Baghar to meet with Allan's "boss." However, Haddock knocks them unconscious and he, Tintin and Snowy steal their motorcycle and head to Baghar to continue their quest to stop Allan. In Bagghar, they discover that Omar ben Salaad (Waleed Elgadi) has the third model "Unicorn". After getting into his palace, they meet Bianca Castafiore, who is staging a concert there. Tintin finds out that Salaad