Doctor Agasa in Detective Conan was a fictional character that did not exist in real life. Therefore, it was not accurate to say whether he was a bad person or not. In the novel Detective Conan, Dr. Agasa was a scientist who studied science and technology. He was also one of Conan Doyle's characters. His image was shaped as a smart, witty, and knowledgeable character who often provided important clues and help to Conan and others. Therefore, he was not a typical bad guy but a character full of charm and mystery.