"The Old Engine" was an unnamed tender engine belonging to the London and North Eastern Railway.
The Old Engine was built at Stratford Works by T.W. Worsdell. When Toby was visiting a seaside branch line, he saw the Old Engine struggling with a load of trucks and offered to help him. The grateful engine told Toby about the festival.
Despite being dirty and badly maintained and suffering from steam leaks which made it hard for him to pull trains, the Old Engine seems to have a bit of an optimistic side to himself.
The Old Engine is based on a GER J15 0-6-0 goods tender engine. The Old Engine's number was fictional as no J15s carried the number "1020".
The Old Engine was painted in LNER mixed-traffic unlined black, but his paintwork was covered in dirt. He has "LNER" written on his tender side in yellow.
- The text in 'Toby's Seaside Holiday' states that this engine is younger than Toby. But the J15s were built from 1883-1913, and Toby was built in 1914. This means that the old engine is older than Toby.