D199

 DIESEL 199  or "Spamcan" or "Old Reliable" is the first diesel engine manufactured by Rudolph Diesel, is painted blue and currently belongs to Charles Topham Hatt. He was constructed in 1915.

Biography
D199 was constructed as a prototype in 1915 by Rudolph Diesel and sold to P. T. Boomer II. He is shown to Sir Topham Hatt II and he is nicknamed Old Reliable

by Topham. On his test run while pulling the express, P. T. Boomer sped up so they would be there early. Unfortunately, it collided with the 9:16 train from Knapford pulled by Alfred and his engine caught fire. It spread up the coach until his fuel caught fire and he exploded, killing himself, his passengers, Topham's family besides his son and Topham. He was rebuilt by P. T. Boomer IV in the 1990s.

He was brought to Sodor in 2020 and regained his face when he went back there. He assisted Boomer in taking out Sir Topham Hatt IV and helping him take over the railway. After the plan failed, he was brought onto the railway with the other diesels who assisted Boomer.

Appearances

 * Episode 2: Aroused Suspicions (cameo)
 * Episode 5: Breakout (does not speak)
 * Episode 9: Back In My Day
 * Episode 10: Back on Topham (does not speak)
 * S2 E1: Connection Through Separation

Trivia

 * For his appearance in S1 E1, it was meant to be Emily but RDS lost the Emily right before the filming