Mighty Mac


 * ''"I'm Mighty!" "And I'm Mac!" "And together we're Mighty Mac!"

- Mighty Mac, "Mighty Mac", ninth season

Mighty Mac is a double-ended Fairlie locomotive. Despite the opposing personalities of the two ends, they are technically one engine, painted royal blue with gold and orange stripes. 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 and freckled cheeks.

Mighty Mac was built in 1886 and arrived on Sodor in 2005. Prior to their adoption into the narrow-gauge family, Mighty Mac had only ever 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 made their debut in the ninth season in the episode of the same name, and have since become recurring characters with minor roles. They are based on either of the Fairlie locomotives "Livingston Thompson" or "David Lloyd George" from the Ffestiniog Railway.