Joao was an engine that Thomas and Nia passed in Brazil. This engine is a reskin of Raul, with an added moustache.
Joao is based on a series of three vertical-boiler steam locomotives built by Sentinel in 1931 for the São Paulo Railway. Raul is also based on one of these engines.
His basis is built to run on broad gauge rails, whereas the Brazilian tank engine is standard gauge and has added buffers, unlike his real-life counterpart.
Joao is painted grey with green lining. His front is blue and he has yellow and green stripes on his cab. He also has a yellow diamond in a green box on the sides of his cab.