Later , popular additions to the cast included the brash , cynical and grumpy Captain PERSON@1 , the bright but hearing-impaired Professor Calculus -LRB- Professeur Tournesol -RRB- and other colourful supporting characters such as the incompetent detectives PERSON@2 and PERSON@3 -LRB- PERSON@4 et ORGANIZATION@1 -RRB- .

Other popular characters include Professor PERSON@5 -LRB- PERSON@6 -RRB- an absent-minded and deaf scientist and inventor , and PERSON@2 and PERSON@3 -LRB- PERSON@4 et ORGANIZATION@1 -RRB- , two silly detectives .
