Thomas the Tank Engine Wikia

Mighty Mac

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This article is about the character. You may be looking for the episode.
"I'm Mighty!"
"And I'm Mac!"
"And together we're Mighty Mac!
— Mighty Mac, Mighty Mac, ninth season

Mighty Mac
  • Builder: Boston Lodge
  • Configuration: 0-4-0+0-4-0T
  • Built: Between 1905 and 1910

Mighty Mac is a double-ended Fairlie locomotive. Mighty is the "older" of the two and is distinguished by a small flick of hair. Mac is the "younger" half and is distinguished by his youthful features, round nose, and freckled cheeks.

Despite the opposing personalities of the two ends, they are technically one engine.


Prior to their adoption into the Skarloey Railway family, Mighty Mac had only worked in the shunting yards. Their lack of knowledge beyond their boundaries created much conflict between the two halves (for example, which end is in charge of doing what), which placed themselves and their passengers in great danger whilst running an important errand. But, with advice from Thomas in mind, they were able to complete their task and realise the value of working as one.


Mighty Mac is based on the Ffestiniog Railway No. 10 Merddin Emrys with added bufferbeams. A Double Fairlie locomotive from the same railway appeared in the 1979 Annual.


Mighty Mac is painted royal blue with yellow and red lining. On Mighty's side, his cab windows and tank caps are lined with yellow, while on Mac's side, they're lined with red.


Voice Actors



  • Taketoshi Kawano (Japan)


  • Mighty Mac has only a whistle on one end of their model.
  • Mighty Mac is the third engine to be based on a Ffestiniog Railway locomotive, the first two being Duke and Bertram



Merchandise Gallery

Skarloey Railway
SkarloeyRheneasSir HandelPeter SamRustyDuncanIvo HughDukeFredMark VMinistry of Defence Engine
BertramMighty MacFreddieLukeProteus

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