Caitlin is a pink streamlined American tender engine from the Mainland.
Caitlin is an American streamliner who takes people from the Mainland to visit Ulfstead Castle. She's designed for speed, and she loves to challenge the other engines to a race. Caitlin can be very impatient.
She and Connor take trains of enthusiasts and holiday makers to Sodor from the mainland. One particular night, she had to stay at Tidmouth Sheds with the other engines, but she was so excited she kept them up all night! Come morning, however, she was the most tired one of all!
Caitlin and Connor take many passengers regularly to Ulfstead Castle.
- Season 2: Young Tucker (cameo), Swan Dive (cameo), Aura of Menace, Swashbuckler (cameo), Self-Fulfilling Prophecy (will appear)
- Season 3: Culdee Fell (cameo), The Suggestion Box (cameo), Chivalry is Dead (cameo)
- Web Clips: Mike and Frank Banter: SLOTLT, ScarletFire, and EE93's Return (cameo), Percy's Kafka Dream (cameo)