Mute

Mute is a diesel in the Mad Bomber Series.

Biography:
Andy diesel had a small but important job for Mute. Andy whispered his secret plan to Mute. Andy says he likes the quiet ones as there is no back chat. Then Andy spots a blue spot on the back of Mute's cab. Andy explains that it looks like Mute has been siding with the steam locomotives. Andy then leaves Mute after telling him to stick to his side.

Personality:
Mute given that he doesn't say much could be a good character or could either turn bad or turn good from bad. Currently there isn't enough information to fully determine Mute's personality.

Trivia:

 * Mute is an ERTL Diesel model with a modified bogie chassis.
 * Mute wasn't in the original 'Rolling Stock', he was added in later on when Leo remastered and re-uploaded it in 2009.
 * To this day no one knows why Mute has a blue spot on his cab, Which was a hint to who The Mad Bomber was(Which turned out to be Bluebell).
 * It is presumed that Mute's name references that he never has dialogue.
 * It was revealed by Leo that Mute is actually Bluebell in Disguise, Hence the reason why Mute lets of steam despite being a Diesel.