Henry in the Dark

Henry in the Dark is an upcoming episode from the twentieth season.

Characters

 * Thomas
 * Edward
 * Henry
 * Gordon
 * James
 * Percy
 * Emily
 * Porter
 * Salty
 * Victor
 * Kevin
 * Sir Topham Hatt
 * Whiff (cameo)
 * Stanley (cameo)

UK/US/AUS

 * Extraordinary Engines