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
Tintin and the Picaros Tintin and the Picaros Tintin and the Picaros () is the twenty-third volume of "The Adventures of Tintin", the comics series by Belgian cartoonist Hergé. The final instalment in the series to be completed by Hergé, in Belgium it was serialized in "Tintin" magazine from September 1975 to April 1976 before being published in a collected volume by Casterman in 1976. The narrative follows the young reporter Tintin, his dog Snowy and his friends Captain Haddock and Professor Calculus as they travel to the (fictional) South American nation of San Theodoros to rescue their friend Bianca Castafiore, who has been