Harvey is a relentlessly cheery, big-hearted, helpful crane engine. He has a very unusual shape, due to his crane attachment atop his boiler, which he can be sensitive about should other engines make fun of it. However, he is very able to show that his crane is very useful in lifting cargo, trucks, and sometimes some smaller engines.
He has a booming, thoughtful voice and large wooden buffers. He is happy to work anywhere, ready to help clear up after an accident, and offer words of care, comfort, and advice