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
Captain Haddock in "Tintin and the Blue Oranges", and by David Fox in "The Adventures of Tintin (TV series)". On BBC Radio 4, he was portrayed by Leo McKern in Series One and by Lionel Jeffries in Series Two. In both the 1960s and 1990s television series, Haddock spoke with an Irish accent. In the latter he was voiced by David Fox with a light Northern Irish/Ulster accent. In the animated movie "Tintin and the Lake of Sharks", he was voiced by Claude Bertrand. In the 2011 film "", Andy Serkis supplies the voice and motion capture performance of Captain Haddock (adopting