Lucky the Dog is the secondary protagonist and Dr. John Dolittle’s sidekick in the Dr. Dolittle film series. His best friend Archie was in second part. Maya Dolittle talks to animals just like John Dolittle does. And she talks to a big black horse named Butch. Here in the fourth part He met Daisy a small Cocker Spaniel. And in the fifth film He saw his girlfriend Emmy.