Carlos is a black tender engine from Mexico.
Carlos first participated in the Great Railway Show during the very first event, competing in the strength competition. He ended up winning this event. Carlos continued to compete in the Great Railway Show every year. When the show was being held in England, he competed in the best decorated parade. He competed against Yong Boa, Rajiv, James and Emily, but ended up losing the event. Later, as he was refilling his tender with coal, Carlos was forced to reverse when Philip was trying to escape from Vinnie, causing the latter to be covered in coal dust when the hopper was still pouring coal out.
After the Great Railway Show ended, Carlos left the Mainland and returned to Mexico.