Quark

Quark is the Szalinski's dog and one of the main protagonists from Disney's 1989 hit Honey, I Shrunk the Kids, its sequels, and its television series.

Honey, I Shrunk the Kids
Quark appears in the 1989 film, getting their mail and bringing them in the house. He is later seen hearing the now shrunken kids whistling and tries to go and help them, but is scared of by the Thompsons' cat Spike. He also accidentally messes up one of Wayne's attempts to find the children. He is later seen at the end, finding the kids and bringing them inside along the way, overcoming his fear of Spike. When the kids are back to normal size, he celebrates Thanksgiving with them and is seen eating an enlarged dogbone.