Who drives trains at a train station?

The conductorActually, the engineer controls the train's movement in & out of the station. The engineer is in control of the train movements with one exception- when a train is put together. A hostler controls the locomotive(s) in the rail yard in preparation for rail travel. It is the hostler who moves the locomotive(s) to the fueling rack, the wash rack, the sanding gantry or to connect to the waiting cars.