Walt Fleischman is a famous cartoon genius best known for his creations Dopey Dog and Winchester Wolf. One day, Walt ended up in the cartoon world, where Winchester Wolf forced him to endure forty years of slapstick-style torture. Eventually, the Ghostbusters entered the cartoon world and saved Fleischman. As a token of gratitude, he gave Ray a Dopey Dog doll.
Walt Fleischman's name is a reference to Walt Disney and brothers Max and Dave Fleischer.