The show focuses primarily on Lucky, Rolly, Cadpig, and Spot the chicken. Early promotional material listed "dictatorial Penny and mischievous Patch" as two other puppy cast members, but the highlighted puppies were whittled down to three.
Other puppies appearing in the show have included the brave three-legged Tripod, Dipstick, the constantly-urinating Wizzer, their sister Two-Tone, and Patch. The show seems to be a blending of both the original animated film and the live action feature, so the potential exists for other puppies from the films to appear, especially Penny, Freckles, Pepper, Jewel, and Fidget.
