Mallard is the world's fastest steam engine, holding the speed record of 126 mph. He currently resides at the National Railway Museum in York, England as a very popular exhibit for tourists. He is also Spencer's brother and Gordon and the Flying Scotsman's cousin.
Mallard was built on 3 March, 1938, at Doncaster Works under the London and North Eastern Railway. On 3 July of that year, while undergoing tests, Mallard established a world speed record of 126 mph. He was renumbered to 22 by Edward Thompson's number scheme in 1946, then E22 in the Locomotive Exchange Trials and finally to 60022 in the days of British Railways. After the decline of steam, Mallard was immediately preserved and put on display at the Museum of British Transport in Clapham, London. In 1975 he was taken to the National Railway Museum, where he sat until 1986 when he was overhauled and taken onto the main line. In 1988, the 50th anniversary of his record, he was retired and put back on display. He has not run since.
In 1991, he participated in a Great Railway Show at the National Railway Museum in York. During that time, he met Thomas briefly when he was invited to participate in the event.
In March 2010, it was announced that Mallard was to be moved to Locomotion, the National Railway Museum in Shildon, on 23 June, 2010. He was pulled by the brand new steam engine Tornado; his departure from the museum was a result of the planned redevelopment of the National Railway Museum's Great Hall, which was cancelled due to unsuccessful funding.
Mallard returned to York in July 2011. He was due to travel to the DB Museum in Nuremberg, Germany for a speed exhibition later in the year, but due to expenses, the event was cancelled. Mallard was one of the engines at Railfest in June 2012.
Mallard celebrated the 75th anniversary of his world speed record in 2013, with all of his preserved A4 siblings. As well as Mallard receiving a new livery of the London and North Eastern Railway's garter blue, his two transatlantic A4 siblings, No. 4489 Dominion of Canada and No. 60008 Dwight D. Eisenhower were both temporarily shipped back to England to take part in the anniversary (both returned in spring 2014).
Little is known about Mallard's personality, but based on his minor appearance in Thomas and the Railtour, he appears to have the same boastful and self-centered attitude as Gordon and Spencer as he believed he should take a special railtour to the seaside.
Mallard is based on the real engine of the same name: the LNER A4 4-6-2 Pacific No. 4468, "Mallard".
Mallard is currently painted in the London and North Eastern Railway's livery of garter blue with red wheels and steel rims. He has black nameplates with his name on them in gold and plaques on the sides of his boiler commemorating his world record.
Adventures on Rails
- Season 2 - A Rookie and another Rookie (not named; cameo) and Lessons Learned (cameo)
- Season 4 - Edward Proves A Point (mentioned)
- Season 16 - Thomas and the Great Railway Show Part 2
The Engines of Sodor
- Season 1 - Gordon and Spencer (mentioned)
The Many Adventures on the Island of Sodor
- Season 1 - A Cousin's "Love" (mentioned)