Dogday is a plushie with brown fluffy ears and a yellow body. He has a brown spot on his left eye and a sun necklace. He is the determined leader of the Smiling Critters, a golden retriever that finds the good and bright in everyone and everything. He uses nicknames and acts randomly. From all of the Smiling Critters, his best pal is CatNap. The two are day and night, and he often has to put up with the cat, but they love hanging out with each other, although DogDay loves to play with anyone.