Caitlin

Caitlin is a sleek streamlined engine who lives on the Mainland, but spends most of her day on Sodor, mainly at Ulfstead Castle.

Biography
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 Bridge to deliver their passangers to Ulfstead Castle. Before the castle was open, she joined Connor, Thomas, Percy and James to help with the search of Stephen. A little while later, she had to spend the night on Sodor and became too excited to listen to Sir Topham Hatt's advice. During that night, she took the Mail Train and the Flying Kipper, waking lots of people up. Another time, Annie and Clarabel were accidentally coupled up to Caitlin, thanks to Charlie. She even took them to the Mainland, but was stopped by Hiro, who brought them back to Thomas. Caitlin later thought that Toby was going to be scrapped after hearing about it from Gordon. Later on, she took Emily to the Steamworks after she broke down, but not much less than a day later, Emily saved Caitlin when her brakes failed.

Later on, Caitlin saw Connor racing with Spencer and Scotsman. That night, when he derailed in a race with Hugo, she and Rosie were on the scene to save him.

Personality
Caitlin loves to challenge the other engines to a race and has a tendency to get a little over-excited. Caitlin is a streamlined engine, designed for speed. Along with her friend Connor, Caitlin is an excitable and energetic character, who likes to be busy and loves to race, and is eager to get other engines to do that with her. Caitlin is impatient and restless if she has nothing to do. She would rather be racing than sit in a station and be idle.

Apperances
Caitlin's Sad Day

Trivia
She is currently the only female streamlined engine.