Stafford is based on the North Staffordshire Railway's battery-electric No. 1.
Stafford is made of veneered wood with cream lining and his number and gold nameplates on his sides.
When Stafford first arrived on the Island, Spencer was given the job of showing him around. Spencer failed to listen to a warning about Stafford's battery running out and when it did, Spencer did not notice. Later, Spencer ran out of coal and Stafford had to shunt the grand engine to Knapford. There Sir Topham Hatt called Stafford a really useful engine and welcomed him to Sodor.