Sonny is an upcoming character.
Sonny is based upon the Haydock Foundry well-tank locomotive Bellerophon, built in 1874 and designed by Josiah Evans. The locomotive is currently preserved by the Vintage Carriages Trust.
Sonny is painted dark blue with gold lining and white boiler bands. His dome, safety valve stand, wheels, running board and bufferbeams are painted black. His number is painted on his cab sides in white.