|Built||Sometime between 1952 and 1965|
|Arrived on Sodor||1981 or 2010|
|Color||Dark Blue with white lining|
|Current Voice Actor||Thomas1Edward2Henry3|
Sidney first appeared in the 2011 Thomas and Friends specials Day of the Diesels. He wouldn't appear again until the Season 17 episode The Missing Christmas Decorations. He was voiced by Kerry Shale in both the American and British dubs of Day of the Diesels while Bob Golding has voiced him since season 17.