Stanley was originally a lion toy, but was broken, and repaired using bunny parts and is resentful about this. Along with Tiggley, he considers himself a broken toy, abandoned by his owner. He plots to break the other toys of McStuffinsville in order to have friends. Doc eventually helps to repair his broken heart and find his owner, who was actually missing him.
- An image of Stanley and Ian can be seen in "Triceratops Trouble".
- Stanley also appears in the background "The Doc McStuffins Christmas Special".
- Stanley is mentioned and seen as a statue in the series finale "It's a Hard Doc Life".