Percy and the Railway Circus

Percy and the Railway Circus is a special released on April 28th, 2017.

Characters

 * Thomas
 * Edward
 * Gordon
 * James
 * Percy
 * Donald and Douglas
 * Flying Scotsman
 * Spencer
 * Whiff
 * Charlie
 * Belle
 * Samson
 * Vinnie
 * The Diesel
 * Diesel 10
 * Paxton
 * Philip
 * Hugo
 * Flynn
 * Bradford
 * Sir Topham Hatt
 * Some Children
 * Some Workmen
 * Mr. Percival
 * The Duke and Duchess of Boxford
 * Mr. Bubbles
 * Sir Robert Norramby
 * Bill and Ben (do not speak)
 * Stephen (does not speak)
 * Troublesome Trucks (not named; do not speak)
 * Toby (cameo)
 * Oliver (cameo)
 * Arthur (cameo)
 * Stanley (cameo)
 * BoCo (cameo)
 * Winston (cameo)
 * Annie and Clarabel (cameo)
 * Henrietta (cameo)
 * The Chinese Dragon (cameo)