Thomas The Tank Engine Series Wikia
"Fizzling fuegos!"
— Carlos

  • Number 903
  • Class: National Railways of Mexico GR-3
  • Builder: Baldwin Locomotive Works
  • Built: 1910
  • Configuration: 2-8-0

Carlos is a small Mexican tender engine who has competed in the Great Railway Show every year since the event's inception. He competed in the best decorated parade in The Great Race.


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 Bao, 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.


Carlos is a proud and happy steam engine from the heart of Mexico. Always wearing a smile, this engine is the life and soul of the Great Railway Show. Originally competing and winning the strongest engine race at the very first Great Railway Show, this engine continues to please the crowds and is now taking part in the Best Decorated Engine Parade.


Carlos is based on the National Railways of Mexico GR-3 class 2-8-0, built by the Baldwin Locomotive Works. The engine bearing his number, 903, was built in 1910 and is currently on display in Acámbaro in the Mexican state of Guanajuato.


Carlos is painted black with a silver smokebox, cowcatcher and bell. His cab doors, windows, handrails and other details are painted red, while his sandboxes and dome are painted with green lining around them. He carries his number on both his headlamp and cab, and the initials "N. DE M." are painted on each side of his tender.



He was going to appear in the promotional videos for The Great Race, but was cut out due to his video Clattering Carlos was cancelled.


  • Despite competing in the Best Decorated Engine Parade, Carlos is not decorated or repainted for the event, whereas the other four competitors for the challenge are, however, in The Big Race, Carlos tells Thomas that he was chosen to participate but he wasn't decorated in time for the parade.
  • Carlos is the second engine to speak Spanish, the first being Victor.
  • Carlos has the same whistle sound as the Rainbow Sun.
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