Henry the Green Engine (TTTE)

Henry is one of the most complex engines. Generally, he is well-behaved, intelligent, and friendly but is sometimes arrogant, stubborn, and rude. At heart, Henry is a very hard worker, but his frequent bouts of illness hindered his work. Henry's illnesses almost always have something to do with his boiler. Unlike Gordon and James, Henry does not mind pulling trucks, especially as he is a mixed traffic engine, although when he is given the job of pulling the express whenever Gordon is unable to, this can get to his smokebox, and he can act full of himself. While he does not usually mind pulling trucks, Henry dislikes having to shunt his own trains, a trait that he shares with Gordon and James.

Of the big engines, Henry is the most likely to be respectful to engines such as Thomas, Edward, Percy and Toby on a regular basis. He does not frequently antagonise his fellow friends like Gordon and James do, and usually shows remorse for his actions. These traits also make him more level-headed and intelligent than his fellow big engines, who often find him trying to keep them in line, being the trio's voice of reason.

He has been shown to be a nature-lover, with a deep appreciation for the forest. On occasion, Henry has gone out of his way to help try and save trees he fears are in danger of being cut down and has been shown to become depressed when the forest is damaged by storms.