watch 01:38 The Loop (TV) Do you like this video? Dr. Zin is the main antagonist of the Jonny Quest franchise and the main antagonist in Tom and Jerry: Spy Quest. He is voiced by James Hong. Gallery "Happy Landing."Add a photo to this gallery Retrieved from "https://tomandjerry.fandom.com/wiki/Dr._Zin?oldid=100861" Categories: Characters Males Humans One-time characters Tom and Jerry: Spy Quest Characters Movie Characters Guest stars Crossover characters Community content is available under CC-BY-SA unless otherwise noted.