Wally is the most prominent character in Welcome Home, as he is often the focus of merchandise, advertising, and is present in every episode and book. His segments were focused on drawing and painting with viewers. Barnaby was often depicted alongside him and illustrated pages note that they were best friends multiple times. (Most notably scenarios where Wally and the viewer are learning something new.) They also share similar characteristics, like hearts on the sole's of their shoes and paws👍