Henry is generally well-behaved, but he is occasionally arrogant and vain. Henry is at heart a hard worker, but his frequent bouts of illness hinder his work. His illness almost always involves his boiler having some sort of issue. Henry has a much kinder and softer personality than some of the bigger engines. He also has a love for nature. Henry is not too bright, and sometimes really worrisome, but he is always there for a friend in need.