Percy, the no. 6 engine, is DCC sound-equipped with a dual-mode decoder featuring whistle, chuff and cylinder blow down sounds. It has a DCC or manual volume control and on/off switch. There is a polarity switch for operation according to NMRA or large scale model railroading practices. Additional character sound suites are available through DCC CV selection only. Character sound suites include: Thomas, Percy, James, Edward, Henry, Gordon, Emily, Spencer and Toby. Whistle or bell per prototype. Engine has moving eyes and international-style hook and loop couplers.
Percy is Thomas' best friend and his favorite job is delivering the mail. He is quite content puffing around the yard with no particular desire for adventure in the world outside.