Inside the Smelter's Class

Inside the Smelter's Class is the twenty-first episode of "Sodor High School: Thomas and Friends Tales".

Characters

 * Thomas
 * Emily
 * Rosie
 * Diesel 10
 * Diesel
 * Terence
 * Brad
 * Flynn (Debut)
 * Belle (Debut)
 * Den (Debut)
 * Dart (Debut)
 * Paxton (Debut)
 * Sidney (Debut)
 * Norman (Debut)
 * 'Arry and Bert (cameo)
 * Gordon (mentioned)
 * Annie and Clarabel (mentioned)
 * Oliver (mentioned)
 * Dalton (mentioned)
 * Andrea (mentioned)

Trivia

 * This episode, along with the following two, is based on the television series special, "Day of the Diesels".