Salty is a diesel shunter who works at Celgreb Bay Harbour.
Salty is easy-going, friendly and very practical. He also enjoys telling fantasy stories revolving around the sea. His seafaring ways and accent are sometimes ridiculed by the other engines, but his usefulness almost always helps the others overlook that. He can work with trucks like no other engine; this is due to his equal love of music to the trucks. He loves the sea so much that he pines for it when he is away from it for a long time. When he is not shunting at the docks, he can usually be found travelling the coasts helping Ariel with her salvage duties.
Salty is based on a BR Class 07 diesel shunter. The number he has, 2991, is a real BR number belonging to a member of the class; built in 1962, this locomotive escaped the cutter's torch by becoming a static generator at Eastleigh Railway Works and is still working there under the ownership of Knights Rail Services as of March 2007. This class of locomotives worked at Southampton Docks, where they replaced the older SR USA (Rosie's class) and LB&SCR E2 (Thomas' class) tank engines.
Salty is painted crimson with pink warning stripes along his body, yellow and black hazard stripes on his front and rear and yellow buffer beams with signs of rust. At the top of his forehead, he has the brim of a skipper's hat. His name is painted on his rear section and his number is painted on his cab sides, both in black.
- Two models of Salty were made. The first one had the face of a 2D promo of Salty for a face and the second one had a screencap of Salty's model from Thomas and Friends with animated eyes. The first model was used in Tillie to the Rescue.