Skarloey along with Rheneas arrived from Wales to work on the Skarloey line and for the next year he kept extending his line with Rheneas. When the line was opened Skarloey and his brother set to work immediately. In the autumn of 1887, the Island of Sodor was inundated with heavy rain, when Skarloey and Rheneas were in their shed, they got a word that the quarry had to be evacuated, since Rheneas was going on maintenance, Skarloey had to rush into the rescue. When he arrived, he found a huge sections of it submerged in water with workmen standard on rooftops, without regard for his own safety, Skarloey rescued and returned the workmen to Crovan's Gate safley which made him famous and the line was renamed to "Skarloey" Railway".
Skarloey is fair, brave and friendly. He acts kindly to engines and passengers.
Skarloey is painted in the Skarloey Railway's standard red livery with blue and yellow lining and with his name painted in yellow on the sides of his saddletank, and a brass dome.
Skarloey is based on the Talyllyn Railway's Talyllyn, a Fletcher Jennings Class C 0-4-2ST built in 1864.
- In Fire, Skarloey had a different model.