His similarity to Marshall is uncanny, but honestly, I think I like Wheeler is because he's a dependable pup, when it comes to not only construction, but also about what he's keen on, like plants and dinosaurs. He always knows what to do and how certain things work, like the science lab. He's a smart pup with a funny side, showing that whether he's related matters little, because he's family to Rubble and the Crew, through and through.