Mr. Nut Nut loves to work. Most of the time, Strudel treats him with some new task or role.
Though he gets on well with most of the dogs at Shelter 17, Mr. Nut Nut doesn't like to be chased.
Mr. Nut Nut's history is recounted in "The Call of the Squirreldog"; He was brought to Shelter 17 in the same basket as his "siblings"- Spotty, Nougat and Gizmo. Spotty told the Pound Puppies that Nut Nut had fallen out of a tree and into their basket one day, and that their mother had taken him in. Due to his upbringing, Mr. Nut Nut was totally convinced that he was a dog rather then a squirrel.
When Nut Nut's "siblings" were all adopted and he wasn't, the squirreldog was heartbroken. After several failed attempts, Strudel finally managed to convince Nut Nut that he really was a squirrel after he lifted a screwdriver with his hands.
After Nut Nut left for the wild, Strudel, who had come to care for the young squirrel, came back for him a few days later, but was pinned under a tree that had been struck by lightning. Fortunately, Nut Nut came across and freed Strudel. Strudel then asked Nut Nut to return to Shelter 17 with her, and serve as her technical support. Nut Nut agreed, and brought along several other squirrels with him (including Sparky). It's said that Strudel is what can be considered Mr. Nut Nut's 'Perfect Person'.
In "Lucky Has to Move", Mr. Nut Nut gave Lucky a going-away present of an acorn-shaped dog tag.
- Official character page on daytime.discoveryfamilychannel.com