Wilfred is a mountain engine and is the Culdee Fell Railway's third engine.
Wilfred was built at the Swiss Locomotive and Machine Works in Winterthur, Switzerland in 1895 and arrived on Sodor in 1900.
Wilfred is a kind old mountain engine. A hard worker, he is very cautious and gets upset at the carelessness of the other engines. He loves to whistle as he goes up and down the steep hills.
When Culdee returned to the Culdee Fell Railway in 1964 after an overhaul, Wilfred and Ernest informed him of the arrival of Lord Harry, Alaric, and Eric. He and his coach were later delayed at Summit after Lord Harry derailed at the points. He was last seen lecturing #6 about the importance of good work.
Wilfred is based on Wyddfa of the Snowdon Mountain Railway.