Emery is the Rapid Transit train often seen on elevated lines or in underground tunnels. He is based on the Urban Transportation Development Corporation Intermediate Capacity Transit System Scarborough RT-type electric train. He likes tricking and harassing other trains into thinking that they have a problem. He is the only engine who carries an additional carriage or truck with him permanently, although in at least two episodes, he disconnects his carriage to go faster. He often announces his actions with transit announcements. His right eye is green and his left eye is blue.
