This article is about the engine. You may be looking for the controller of the North Western Railway.

Bertram, nicknamed the "Old Warrior" by the railway staff because of his bravery, is an old narrow-gauge tank-tender engine who worked at the mines. He lived on a remote part of the Island that was once very rarely visited.


Thomas & Friends

Bertram used to work at the mines, near the Mid Sodor Railway and Tidmouth Bay. His fate was unknown to many after the mine's closure, and it was assumed he was left to rust. He remained at the mine until it was rediscovered years later.

Over time, he became legendary; many knowing of the "old warrior ghost" haunting the mine. However, one night Toby discovered Bertram whilst watching over the mine and castle, which were being restored to accommodate visitors. At first, Toby thought Bertram was a ghost, but the two have since become firm friends. Bertram was later restored and became responsible for transporting passengers to and from the mine and the castle, taking passengers to the fairground within.


Not much is known about Bertram's personality; however, it is said that he is very brave and that he and Toby are firm friends. Toby states that if there are any ghosts at the mine, they certainly make the place feel very happy.

Technical Details


Bertram is based on Prince, a George England tender engine on the Ffestiniog Railway. Duke is another member of this class. Bertram has been re-gauged from 1ft 11 1⁄2in to 2ft 3in and been given loose couplings.


Bertram is painted dark brown with red lining.

In some of his merchandise, he has two brown or red nameplates on either side of his saddle tank with his name written in gold. Bertram's original wooden railway toy depicts him with a red cab roof, domes, and lining. He also has a black "L" in place of his nameplate on both sides.



  • Bertram was the first non-Awdry narrow gauge engine to be introduced in the television series (not counting Smudger, who replaced Stanley).
  • According to Britt Allcroft, Bertram was supposed to be a tank engine, but financial difficulties led the crew to repaint Duke's model with Smudger's face.
  • Bertram's original Wooden Railway toy depicts him in his "tank engine" form, and a model in his "tender engine" form was released in 2016.
  • His ERTL toy, TrackMaster prototype toy, and the 2014 map spelled his name as "Bertrum".
  • Bertram's ERTL prototype, Trading Card, and promotional artwork images have Duke's face.
  • Bertram's ERTL, TrackMaster, and Trading Card depict him with a flat-square cab roof.
  • During production of the eighth series, Bertram's model was reverted back into Duke.
  • Bertram's total screentime in the episode he appears in (Plus the show in general) is 19 seconds.



“Beware of the ghost, Toby."
"W-W-what ghost?"
"The old warrior ghost. Every night he lights his fire then goes hunting. Toot toot, goodbye!”
Thomas telling Toby about the "Old Warrior"[src]
“This is your ghost, Toby. His name's really Bertram. But we call him "the Old Warrior" because he's so brave.”
―The Signalman introducing Toby to Bertram[src]


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