Fire Nation train engineer

"fire"

- Ugh. What happened? I was trying to stop the train, and then there was this big explosion.

The Fire Nation train engineer was the engineer on the train attacked by Combustion Man.

History
One day, the train he was working on was visited by an undercover Avatar Aang and his friend, Sokka. The two had also brought along a little girl named Sho, who would be riding his train to get to her grandmother's house.

Unbeknownst to them, they were being followed by a firebending assassin nicknamed "Combustion Man". With his overdeveloped third eye, he shot a beam of light towards the Avatar, causing part of the train to explode. Consequently, the engineer hit his head and passed out, leaving the train unpiloted. The conductor attempted to contact him, but to no avail. Sokka then set out to the engine room, where the engineer's body was located, and slowed the train down.

Sokka succeeded in opening the door to the engine room after a bit of trouble, but had more difficulty in stopping the train. Luckily, he managed to figure it out and stopped the train, while Aang managed to beat Combustion Man. The engineer then came to and found that Sokka had saved his train. In gratitude, he let Sokka have his hat. By the end of this journey, however, his train was rendered unusable.

Trivia

 * This individual once owned a hat that he gave to Sokka in thanks for saving his life and that of his passengers. Sokka was later seen wearing the hat as he rode off on Appa.
 * He appeared to have a missing tooth.