Dukey is Johnny's dog. One of the most notable things about him is that he has the ability to speak. He was a very disgusting dog until Susan and Mary enhanced him by mutating him. Since then, he can both fetch the paper and read it. He is also a master at karate, knows somewhat how to speak Chow Mein, play video games and gives great advice. When Johnny, Susan, Mary and Dukey are near a human that does not know Dukey and he (Dukey) talks, the other person usually says "Did that dog just talk?". Or when Dukey is near Johnny's dad, and Dukey talks, he (Johnny's dad) says "Did Dukey just talk?"