While the train is moving they stoke the fire and keep the water level where it needs to be. After a trip, they clean the firebox. They also couple the engines if a shunter isn't available.
Once, James' Fireman was ill, making the Doctor drop his medical suitcase inside James' firebox. Stanley and his crew also fell into a waterworks pit, and would've drowned, if Mike had not told Stanley the story of his missing whistle, and given Stanley the idea of using his whistle as a projectile to acquire a rope for his crew to escape.
- Stanley's fireman: Tardisrescue
- Edward's fireman: one of EE93's Friends
- Arthur's fireman (Larry): MainLineEngine112