Thomas’ Big Live Tour Wiki

Mallard, who is the fastest steam locomotive in the United Kingdom, has a streamlined design which is wind tunnel tested. He once held a speed record of 126mph (203km/h), therefore making him one of the fastest locomotives in the world! So far, he’s expected to be added in the April Fools Update.


  • Unlike his brother, Spencer, Mallard has side valences partially covering his wheels. Spencer does not have side valences, much like how the A4s looked from 1941 up to withdrawal.
  • In his first appearance, he will be a re-colour of Spencer, with a double chimney.
  • Olwin, a character from Chuggington, is based on Mallard because she has a double-chimney, much like Mallard does.[[1]]