Caitlin is a fast streamlined engine from the Mainland.


Caitlin loves to challenge the other engines to a race and has a tendency to get a little over-excited. She, along with Connor, regularly transport passengers from the Mainland to Ulfstead Castle.

Along with the other engines, Caitlin helped with the search of Stephen before Ulfstead Castle's opening. She also once had to spend the night on Sodor and became too excited to listen to The Fat Controller's advice. During her night on Sodor, she took the Post Train and The Flying Kipper. Unfortunately, she did not take others into consideration and ended up waking lots of people up.


Caitlin is a streamlined engine, designed for speed. Along with her friend Connor, she is an excitable and energetic character, who likes to be busy and loves to race. Both Caitlin and Connor are friendly and eager to get other engines to join in the fun with them. Caitlin is particularly impatient and restless if she has nothing to do. She would rather be racing than sit in a station and be idle. Caitlin and Connor were introduced to the island to bring passengers from the Mainland. They zip on and off the island frequently using the Vicarstown Rolling Bridge.


Caitlin is painted a purplish red colour with light grey and light blue lining.




  • In real life, Caitlin would be too large for the British loading gauge. However, she seems to have been re-scaled to avoid any animation issues.
  • Her valve gear and siderods are not animated properly. Their movement would be jammed in real life.
  • Caitlin has been modified for use of British rail lines: she has a screwlink coupling and buffers on the back of her tender. She retains a streamlined cowcatcher on the front, so she is unable to shunt.
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